Denmark data breach exposes 8.8M people's personal data (cpr.dk)

449 points by clan 14 hours ago

aiiotnoodle 12 hours ago

I'm seriously at a point where I'm opposed to talking to my doctor because the information may be digitally recorded and leaked, going on a flight because my passport may be used to aqquire a loan by cybercriminals, comparing car insurance because my phone will be called by robocallers selling me things or verifying my ID with websites because it might be used to associate my information with whatever else I do online.

I don't think, for a vast majority of cases, these companies I'm forced to interact with can be trusted with my data and it's having a real world negative impact. Even with the best intentions the information is somehow valuable to steal and I'm baffled how it's not secure.

There should be some consequences for companies asking for things like SSN/National Insurance numbers on job adverts or retaining drivers licence photos after test driving a car, they just don't need the data anymore.

suslik 12 hours ago

I am at a point where I simply stopped worrying and began to love the bomb. I did my best, I really did - degoogled before it was trendy, dropped all social media, built a homelab for complete data ownership, set up matrix messaging with family, and so on - but it feels like a wasted effort at this point.

All my data is out there, one way or another, and a dedicated cybercriminal - or worse, a government entity - can obtain or exfiltrate it without issues. I know it, they know it, everyone knows it.

The only thing I can change now is my reaction to this fact, and although the idea of off grid autarky is tempting, I am not there yet. I just don't want to stop living - flying abroad, going to doctors - I just accept that privacy in the current state of human condition is impossible, and move on with my life.

shit_game 11 hours ago

>I simply stopped worrying and began to love the bomb

This may apply to the consequences of ones data being subject to so many breaches and leaks and thefts, but it should not be the attitude one adopts towards the idea of ones data being taken and used by so many parties. At some level, my data is my personhood - it is my evidence of myself, and my record of myself, and my proof of myself. It encodes who I talk to, what I'm interested in, where I go, and what I do. My health, my finances, my habits, vices, schedule, family, friends, coworkers, beliefs. People more clever than myself use this data to advertise to me; people more powerful use this data to surveil me. When will people more malevolent use this data to persecute me?

I should not have to love the bomb because the bomb will kill me.

kspacewalk2 6 hours ago

BobaFloutist 6 hours ago

lencastre an hour ago

EA-3167 2 hours ago

clickety_clack 5 hours ago

It’s not the current use of the data that’s concerning, it’s its future use. Who’s to say that some facet of your life that is ordinary now will not one day paint you as the target of some future regime? It happened in Europe a few decades ago, and in many other countries around the world.

vladms 3 hours ago

thomassmith65 10 hours ago

To be zen about one's privacy is easier for some people than others.

There are situations in many a person's life that if revealed to the public would have life-altering consequences.

Rather than the world give up, we should have better tools and laws to flood the internet with spurious personal data.

ruszki 11 hours ago

Similarly. My browser was carefully containerized, with a ton of anti fingerprinting measures, VPN, Linux, Librewolf, everything. Even on my phone, I restricted whatever possible. Then one day I went to the YouTube main page, and I saw that Google somehow got to know that I played Minecraft again after a decade. I gave up right there. I suffered to avoid this, and it was pointless. I knew at that point already that probably all my PI is public information anyway, but I wanted to restrict whatever possible, and no, everybody sells my data anyway, and it seems that avoiding fingerprinting is impossible without turning off the internet completely, and ditching smart phones.

neobrain 11 hours ago

astura 10 hours ago

sillyfluke 11 hours ago

hypfer 11 hours ago

These swings can be avoided by not doing stuff so hard but instead more effectively.

For example, matrix sucks ass. It's terrible. Everything about it is a bad experience. Of course you'd want to eventually stop using it and go back to the previous life.

But that is not the correct take-away.

The correct take away is to include UX (and honesty to yourself about it) in the calculation and to not go all in on an unsustainable compromise, just to then snap back to doing the opposite ca 3 months later.

Same as with loosing weight, really. If you replace 100% of the pleasure of eating with the "right" but unpleasant solutions, you will not be able to keep that diet going indefinitely.

kuon 9 hours ago

PatronBernard 8 hours ago

This makes me think: how would someone like Mark Zuckerberg handle this for his own internet presence? Or does he sidestep this issue completely by having assistants for nearly everything? I can imagine he doesn't do much more than look at .ppts and fire off emails. Do data brokers have any information at all on this guy?

goosejuice 8 hours ago

bix6 7 hours ago

gentlerain 11 hours ago

The next frontier is to maintain 'limited privacy'.

That's denying most culprits the opportunity to use the collected data against you.

Like always on VPN, turning off personalization, ad guards and using open source products where possible.

autoexec an hour ago

arethuza 11 hours ago

TeMPOraL 11 hours ago

_the_inflator 10 hours ago

I agree.

And most people on the behavioral side do too, but not at the cognitive level. EU is the best example with EU AI Act, strict data regulation as well as privacy rights, on the other hand demanding that Apple does serve the EU with AI.

I have mainly one distinction: the state is the worst protector of your data and the most ruthless gatherer of all your details.

Opposite to the open sourcing of your data in the end by the state are private companies who live by your data but do this for 20+ years - battle tested protection and hardening against malicious hackers.

Security is their business while security for the state is a cost factor.

Being at the mercy of some ignorant politician is not the best way to talk about data security.

Berlin, Denmark - those are the known one. And there are many more to come.

And regarding cognitive dissonance: politicians demanding high standards and punishing data loss ruthlessly on the one hand, giving oneself a pass on a hack is nothing to increase trust into the system.

X got fined for a missing blue mark. Berlin? Denmark? Others?

A second aspect is that the average guy doesn’t get that part of the whole spectrum must be the degooglers, the home server guys.

So it is relatively easy to get data on them as well just by filtering out the other data.

In other words: 95% not doing degoogling makes for a great small sample of 5%. Negating and interpolating other demographic and psychographic factors and you get a great way of gaining insights.

And remember: being the one who is not using google when being around other guys who do - magic.

So my idea is simple: what’s in it for me, and the state offers way lower value than Google and co.

Pick your fate.

KPGv2 8 hours ago

thewizzardofnl 11 hours ago

I think both are possible. To have a goal and to accept reality. I would not draw the conclusion that all privacy measures are meaningless. It is hard, but I think it is still worth working towards a goal of better privacy for citizens.

mdp2021 10 hours ago

> wasted effort

That depends. One thing is following precautions, another the Principles. Precautions may have a limit ("due diligence done, I'll stop there"), Principles do not.

Remember also that many phenomena occur because the individuals in the masses have not said "no". Acceptance enabled them. So the acceptance of some ill conceived systems is criminal - it is what lets them exist.

adverbly 8 hours ago

Two problems with that:

1. I don't want to love it. I hate it. You can learn to live with things you hate though, and not have it impact your day to day life or mental health though.

2. Its still a bomb. Until we find out how we can de-value the data, it will have an incentive to be stolen.

One thought here that I don't personally agree with, but might be important regardless:

Imagine a society without secrets or privacy at all for example.

I don't personally like the sounds of it, but it is sort of where we're headed at the moment, and if the fundamental reality is that obtaining data is much more easy than defending it, then perhaps we need to come to terms with a world without privacy, and how to create the best version of that unconstrained world.

Again, I don't like the sounds of this, but I'm curious to read more about it. Can someone give a philosophical pitch of why GDPR style regs on personal and company data are so important?

robwwilliams 6 hours ago

LoL. We are all dancing naked on the table and hoping our clothes and wallet or purse and some of our pride will be where we left them.

TeMPOraL 11 hours ago

Evidence is pretty clear after decades of this: big data breaches are inconsequential for an average person.

They happen all the time, nobody cares, criminals who want to target you will target you anyway, criminals who don't target don't care about you specifically, legitimate entities cannot use this data anyway, and legitimate scammers (marketing) will find different ways to get you to give them the data you need.

At this point I thing privacy obsession is modern copium, a way for people to deal with the fact that we're all individually a speck of dust on the face of human civilization. It's about asserting, "I am not an NPC, I have this richness of experience", and then trying to hide it all in case the world wants to check.

anilakar 11 hours ago

swozey 8 hours ago

All of the popular surveillance apps correlate your email address and phone numbers mostly, but if you used 1@gmail.com to sign up for 2@gmail.com google knows and marks it as your altnerate account, it could give them all your 30 rando gmails, you're then linked by phone activations through those emails to everything else, whatsapp, telegram, credit card purchase, etc. the biggest link in the chain is always the phone number though. They also have a big "Alternate Emails" button. Everything fans out from those.

I don't know how deep palantir can build profiles on someone, like digging into comment histories and extrapolating you are x y or z sort of stuff. I'm sure they've learned a lot about people via public irc logs and discord servers. But the only screenshots I've seen have been way more simple than that, basically a facebook UI that gives them buttons for all the apps with the phone # that has been identified as you the user, so it would be your list of social media apps accounts and they just click in and read messages. These screenshots have popped up in court cases recently.

We need to stop using the same phone numbers and rotate them constantly. Ideally back to something like fi that masks your "real" isp account phone number. They need to stop being a 2fa and especially stop being able to identify a person. Carry a dumb 2fa. I've always been on the "dont ask for my phone number to use your service" bandwagon but absolutely now.

And now some banks are doing instant voice recognition. I don't pick up my phone for any number I don't know anymore.

sillyfluke 10 hours ago

>I just don't want to stop living - flying abroad, going to doctor

Good, you're not throwing out the baby with the bathwater. I don't get why you think throwing out the bathwater itself was wasted effort though.

The point is to get rid of things you can live without. If you're going to get rid of something but then spend every day thinking of its absence, then yes, that may be bridge too far. Otherwise, getting rid of it has some value.

I don't see the harm of asking, "Do I need this entity's services enough to justify forking over this data" for every entity that you interact with. Everyone draws their line in the sand at a different place. Data hygiene is a good phrase for that reason, everybody's acceptable level of hygiene (or lack thereof) is different.

ionwake 12 hours ago

I gave up when i realised Firefox had google analytics and noone even knew or cared. That was about 10 years ago now.

Kbelicius 11 hours ago

archon 8 hours ago

> I'm seriously at a point where I'm opposed to talking to my doctor because the information may be digitally recorded and leaked

And then add on that fact that my doctor recently started using some kind of AI voice transcription app that listened to our entire conversation. Except that it hallucinated details I absolutely did not say, which are now in that doctor's records and I'm sure will be taken at face value in the future.

It's maddening.

98codes 6 hours ago

It is definitely worth asking for a copy of those notes, verbatim, as-is from the automatic transcription, to check for errors while the session is fresh in your mind.

If your doctor is worth seeing at all, they will be glad for the corrections.

coryrc 5 hours ago

I have another solution. I look normal online when filling out information. I use Facebook, whatever.

But whenever possible, I lie. Different name, birthdate, every question about "favorite pet"? A lie. "They" have tons of data on me, but more and more is wrong. Let it leak.

smartbit an hour ago

Then this is something for you https://shop.digitalcourage.de/themen/ak-vorrat/lichtbildaus.... Either get it online, or buy at events like Chaos Computer Congress.

sib 4 hours ago

I use my password manager to maintain unique answers to all of the useless verification questions about pets, movies, teachers, etc. Only way to scale it.

docjay 3 hours ago

strideashort 12 hours ago

I recently needed a lawyer on something that involved lots of highly sensitive PI.

Sending my file over to lawyers in a semi-safe way has proved impossible.

And in any case, i received an answer with lots of PI over a plain email…

Absolutely maddening

vaylian an hour ago

Was Signal an option you have considered? It's designed to be secure even if the user is non-technical.

master-lincoln 12 hours ago

Why? I would assume encrypting and sending the key via a different channel would be sufficient. Or are lawyers still not technically apt to do so?

CrimsonRain 11 hours ago

strideashort 5 hours ago

Telaneo 10 hours ago

talon8635 an hour ago

I was at that point in 2015, at which point my social was already leaked in a major breach, and after which it was leaked two more times in other breaches.

msdz 11 hours ago

> There should be some consequences for companies […] retaining drivers licence photos after test driving a car, they just don't need the data anymore.

I know it’s modern American tech tradition to make fun of the GDPR, but this is genuinely one of the things it stipulates: You’ll get at least a slap on the wrist, or potentially much worse, if you needlessly keep data around longer than necessary to do the task you had collected it for in the first place.

nswizzle31 8 hours ago

What punishment does the country of Denmark get here, if you had to guess?

senordevnyc 9 hours ago

Pretty ironic to be extolling the virtues of the EU's privacy approach on this story in particular...

faidit 7 hours ago

We need HIPAA for businesses. We tried letting them regulate themselves and it didn't work. Businesses need to be forced to compete on the quality of their products/services and not rewarded for reselling customer data to spammers and criminals

NooneAtAll3 2 hours ago

> or retaining drivers licence photos after test driving a car,

mind that there was a breach recently where all the data was being leaked *the moment it was collected*

so simply controlling retention is not enough. The very fact of data being taken is already a vulnerable part

amelius 12 hours ago

I mean why does every hotel need to make a copy of my passport?

ElDji 12 hours ago

It is a basic police requirements on most countries. Hotels must collect visitor id's and keep it for several weeks.

toyg 12 hours ago

severino 8 hours ago

ninalanyon 9 hours ago

edelbitter 9 hours ago

Scaled 12 hours ago

I just tell them they can look at it but not copy it and that's satisfied them, for now. Sometimes had to get a manager in, but never had them deny me fully. I'm sure sooner or later I'll run into a stubborn one and have to scramble for a day-of replacement hotel, and that just adds to my list of reasons to avoid travel.

mk_stjames 3 hours ago

Razengan 12 hours ago

And why are politicians immune to all of this shit??

Why can’t WE spy on them 24/7?

lynx97 12 hours ago

sparkling 12 hours ago

tokioyoyo 12 hours ago

I said it before as well, but it’s because nothing “publicly really bad” happened despite the leaks and stolen information over the past decades. After Equifax breach, everyone got tired, because company survived, and whatever identity theft happens from time to time gets swept under the rug. It didn’t impact most people’s lives, despite leaking half of the US’s SSNs and etc. Then fatigue kicked in, and with subsequent leaks everything just mellowed down, so nobody cares.

I’ve switched to operate with the idea that my information has already been leaked at some point. I should be generally ready to fix the problems if/when identity theft happens, rather than inconveniencing myself and figuring out the third party trust situation.

TacticalCoder 11 hours ago

In France the french IRS leaked infos about the wealth of its citizens and evil thieves cross-checked it with leaks of people who ordered hardware wallet for cryptocurrencies and families are getting kidnapped and tortured. In a recent case three family members have been beaten over two days so that... 40 000 EUR could be stolen.

That's the world we live in.

"Police and thieves", collaborating one way or another (leaking data collected by big brother and then having big brother being very soft on crime is one way to collaborate with evil people), "to scare the nation with their guns and ammunition" (as in the reggae song).

As much as I don't like the cryptocurrency ecosystem, I don't think facilitating and encouraging kidnapping and torture is the way to go.

Shame on the french government.

Two sides of the same coin.

Frieren 10 hours ago

> As much as I don't like the cryptocurrency ecosystem, I don't think facilitating and encouraging kidnapping and torture is the way to go.

The cryptocurrency ecosystem is used to not only avoid taxation but to enable criminal activity. How many people are being held hostage and the ransom will be payed thanks to cryptocurrencies?

I do not like the cryptocurrency ecosystem either. And I totally agree that it should be abolished. It is just a way to finance crime and terrorism.

crabbone 3 hours ago

Last month I had to lodge a complaint with Lycamobile because they arbitrary cancelled my plan, essentially, pocketing some 50 Euro. Trying to follow their very elaborate support extensions maze, I ended up in some Indian customer support center that proved to be completely useless when it comes to solving issues caused by the service provider itself.

However, next week, I started getting calls from other Lycamobile numbers, where it sounded like the same Indian guy, but now he presented himself as a police officer who wanted to arrest my bank account :)

The moral of the story: if you have a phone number, it's been already sold to some shady call center in South-East Asia and it's just a matter of time before they will try to scam you or use your phone for some nefarious purpose. I don't think Lycamobile is unique in how bad their system is and how much they want to extract every last penny from you buy outsourcing every service to foreign companies with zero responsibility and questionable work ethics.

mdp2021 12 hours ago

> where I'm opposed to talking to my doctor because the information may be digitally recorded and leaked

Let me say "Hi mate, +1". State doctors? There are territories in which a pharmacological prescription is shared DB only now (where previously they could be on paper - a secret between you, the pen, the paper, the pharmacist and the gods). Private entities? Good luck finding one that does not require a privacy waiver as a condition for the visit. Searching for a medical dock (a dock for a doc), calling them to ask? "This is a recorded message. If you proceed with the call then you agree..." (Hang-up click).

astura 9 hours ago

>previously they could be on paper - a secret between you, the pen, the paper, the pharmacist and the gods

Excuse me?

If you weren't paying with cash whoever paid for the prescription (govt, insurance) has a record of it. The pharmacy that filled the prescription has a record of it as well as the doctor who wrote it.

mdp2021 9 hours ago

chrisjj 10 hours ago

> I'm baffled how it's not secure.

Our civilisation needs to face up to the fact the reason is simply: its stored on a connected computer.

Tangurena2 9 hours ago

Too much is stored in computers. In the EU, you own the data about yourself. In the US, whoever owns the computer owns all the data on that computer - you own nothing and you will love it. We need to make PII radioactive and fine everyone who had that data stored on their computer when it leaked.

yeahforsureman an hour ago

c-fe 9 hours ago

> they just don't need the data anymore.

Thats the wording of GDPR.. that you should delete data after you dont need it anymore for the original purpose..

Unfortunately, it seems noone is enforcing it enough.

KPGv2 8 hours ago

> my passport may be used to aqquire a loan by cybercriminals

In the US, you can freeze your credit, making this impossible (even for yourself).

Hamuko 12 hours ago

I’m never going to a therapist after one company leaked all of the patient data / therapy notes for 33k patients.

lux44 12 hours ago

It looks like you punish yourself unnecessarily, for things that are out of your control.

Hamuko 10 hours ago

wyre 10 hours ago

childintime 11 hours ago

ratg13 12 hours ago

This is just a general American complaint that has merit on its own, but has nothing to do with the article and is just derailing any discussion about the article itself and driving the conversation to your own personal concerns about something completely separate.

In this case, the EU does have consequences for data breaches where proper protocols are not followed.

Additionally, this is not private information .. most anyone can look this information up. ID numbers are not confidential information like SSNs are treated in the US.. they are just a number to tell person A from person B. You give this number to everyone without thinking about it because it's how every company you interact with identifies you.

In this case a rogue company, or compromised company, used their access to contact the central database to download everyone's information.

In my country we essentially use the same system, except for we still allow companies to download the whole database if they want to instead of making individual queries.

In this case the access to their system was unauthorized, and under GDPR data breaches have to be reported within 72 hours. Companies can't make the decision on their own that it's not a big deal.

heresie-dabord 11 hours ago

> I don't think [...] these companies [...] can be trusted with my data

Abusing privacy is the lucrative norm. The laws won't help you and the government is busy with its corporate agenda.

hk__2 11 hours ago

There’s nothing lucrative in abusing privacy, and yes the government is busy but it has nothing to do with a "corporate agenda", any government or any country with more than a few millions of people is busy, agenda or not.

gnull 12 hours ago

In Sweden, to avoid this kind of malicious leaks, we leak the residents' data officially. https://hitta.se lets you look up personal numbers, names, addresses, birthdays and sometimes phone numbers of any resident. The residents are not asked for consent, the data goes there automatically (some of my friends had success with having it removed from hitta, but it comes back once you change residence address).

It's quite convenient, when you meet a new friend, to go and check what neighbourhood they're from, who do they live with and where they lived before.

What's the big deal, Danes? What do you have to hide?

(The provocative tone is intentional as a joke, I'm not even a Swede, I just find the brotherly rivalry between Scandinavians amusing.)

alkonaut 8 hours ago

These services were just the natural extension of the phonebook. At the exact same time as the phonebooks stopped being circulated, these services popped up online.

And since everyone's name, address and phone number was in the phone book (At least for their city) people didn't find it weird when it popped up online. Sure, to do the same thing for the whole country you'd need dozens of phonebooks for different areas, but it was just the same information.

Which makes me wonder: weren't there phonebooks in US cities and in other countries before? Were they incomplete/opt-in?

The key thing about the Swedish phonebooks were that they were opt-out, so people were basically all in the phone book. So even before the internet, it was just very natural that your name, address and phone number was public. "Getting someone's number" as in moves and TV wasn't a thing. You could just call anyone if you knew their name.

sib 4 hours ago

Yes, we had phone books. And it was useful. But they didn't generally include personal information such as birthdates, salary, etc. And it was easy to opt out. Additionally there were not a bunch of online services with financial impacts that used phone numbers are primary keys.

And, importantly, they were physical in a time when it was hard to collect and collate the data in all of them. In 1990, there were about 5,000 distinct "white pages" phone books in the US. And OCR was pretty crappy.

Also, in all the places that I lived, mobile numbers didn't end up in the phone books, only residential landlines did. I don't know if that was universal.

christophilus 42 minutes ago

jvvw 7 hours ago

In the UK, you could always choose to go 'ex-directory'. More and more people did over time I think and the personal part of the phone directory got slimmer and slimmer, basically just leaving the business part.

aranelsurion 12 hours ago

Are there no murderers, crazy ex-boy/girlfriends, targeted harrassment and spam calls in Sweden?

Not that any other country does much better in this regard. Still it sounds a little wild to me that you can get this information without even needing to hit a shady forum and download some csv. Maybe lowers the bar too much.

Alpha3031 11 hours ago

I've been told back in the day it was quite normal get a physical, dead-tree book with similar information sent out to you every year, until people decided that was a waste of paper.

consp 11 hours ago

MisterMunchkin 4 hours ago

lifeisloving 10 hours ago

When I lived Norway, my gf at the time would look up the license plates of cars that annoyed her and could see how much debt they had on the car to make fun of them. Scandinavians are oddly very open with this type of personal info.

piva00 10 hours ago

ninalanyon 9 hours ago

embedding-shape 10 hours ago

darknavi 7 hours ago

I learned this (public info) about Sweden a few years ago and as an American it really pissed me off.

In the US you can get the exact same info and probably more by simply paying a private corporation/middle man (background check services).

It seems like a huge trend in many sectors. We have the same setup as other countries, but shittier for consumers because there are lifeless leaches as middle men to make a quick buck.

f646993e074382f 11 hours ago

Yes, it is possible to have a protected identity.

fwn 11 hours ago

p-e-w 9 hours ago

embedding-shape 10 hours ago

> Are there no murderers, crazy ex-boy/girlfriends, targeted harrassment and spam calls in Sweden?

Of course, contrary to popular belief, Sweden is not a perfect country without violence and shit people!

It seems to be somewhat respected overall though, but I'm sure it'll eventually disappear. For the people who are stalked and what not, it's relatively easy to apply and get "protected identity" if you're affected by those things, and then eventually all those 3rd party websites remove the stale data.

Personally I solved this problem for myself by moving away from the country.

melvinroest 9 hours ago

tuwtuwtuwtuw 11 hours ago

There are. You can get a protected identity if you have that issue.

The current system has been in place around 1770. There's some pushback against it the last few years.

talon8635 an hour ago

Talk about creating our own problems lol. We’ve made a total mess of things. No onset normal people hate us technologists.

mrweasel 11 hours ago

I have been advocating for Denmark to do the same for 15+ years. The fact that your social security number can be used for anything on it's own is a disaster. Mostly it can't anymore, because you have to do electronic signing with MitID, but it's still considered secret. If you own a home in Denmark, address information is already public, but a little hard to lookup.

The problem with this leak mostly going to be those with hidden addresses or secret phone numbers. Last time something similar happened was when it was shown that you could pretty much just guess a persons social CPR number if you had their birthday. Normally you could narrow it down to 6 or 8 possible numbers then use the phone companies websites, pretend to create a new account, enter the CPR number and check if you guessed correctly. Because the demo was done with politicians, then phone companies no longer ask for CPR upfront.

sigmoid10 11 hours ago

>Because the demo was done with politicians

I feel like this should be the default. Responsible disclosure to the affected company, followed immediately by disclosure to every politician in the dataset. Once we start collecting high profile cases this way instead of waiting X days for a faceless corporation to release a fix, companies will think twice about their security and the data they collect if that could make them end up on the shit list of the local government.

encom 6 hours ago

groomlake 11 hours ago

  The review conducted shows that the unauthorized access does not include the names and addresses of individuals who have chosen to register with name and address protection.
From the source

sajithdilshan 12 hours ago

I was actually surprised when I heard about this for the first time. Also I've heard that even the salaries of people are publically available. That's really cool.

Gravityloss 12 hours ago

This probably improves economic efficiency a lot. Want to build something and remember meeting a relevant expert 3 years ago at a party? Easy to find that person and start doing business...

dist-epoch 11 hours ago

Boltgolt 12 hours ago

You do have to request them and the person you requested them for will know you did so

kassner 11 hours ago

estetlinus 9 hours ago

Yeah, Offentlighetsprincipen is quite Swedish, isn’t it? I like it. Not sure it was made for the 21st century though.

mingusrude 11 hours ago

Personal numbers are not available from hitta.se.

Hikikomori 11 hours ago

Not in full as it doesn't have the last 4 partly random digits, though personal numbers aren't that useful even if it was the full one.

boramdd 8 hours ago

ntoskrnl_exe 12 hours ago

Just that easily all the private conversations of everybody in the EU can leak if Denmark succeeds at outlawing E2E encryption with its Chat Control proposal.

Not trying to downplay the situation, but I hope this will be eye opening to the responsible people.

Proof 11 hours ago

Unfortunately, for the people who strongly believe that Chat Control is the way, they will use these types of events as further evidence as to why spying on everyone is the best deterrent.

raxxorraxor 12 hours ago

I heavily doubt these people are open to self-criticism in any way. They have their program and are set to implement it.

ninalanyon 9 hours ago

> I hope this will be eye opening to the responsible people.

Don't hold your breath.

clan 13 hours ago

For those not getting the scope of this. The following has been compromised for all living danish citizens and foreign nationals which have had recidence. And quite a few dead ones as well.

- Social security number

- Age

- Sex

- Family relations

- Physical address

- Protected addresses

- Sex change

This is a country with quite good health records. Unfortunately also previous problems with proper non-reversible anonymisation of said data when used for research.

kasperni 12 hours ago

Nobody knows exactly what was accessed. What you have listed is what the register contains, not what was accessed. People with "Protected addresses" have specifically not been compromised.

clan 8 hours ago

That is not what I have heard.

AFAIK those with protected addresses has not had their address compromised. But ID and name still is.

And with the rest exposed it is now trivial to see what adresses are "interesting".

deanc 11 hours ago

In Finland, this would be enough to get you through the security checks at pretty much any institute via phone, possibly excluding banks.

nottorp 6 hours ago

Finland uses whatever the equivalent of a SSN is as a password, US style?

deanc 5 hours ago

delamon 12 hours ago

They say that persons with protected address had not been leaked.

toyg 12 hours ago

What's a protected address, witness relocation programs...?

LarsKrimi 12 hours ago

Mashimo 12 hours ago

wodenokoto 12 hours ago

I think it is worth mentioning that age and sex is encoded in the social security number.

There are exceptions where the encoded birth date will be wrong (like immigrants with unknown birth dates) or dates where there are more people than the 4 digits that encode checksum validation and gender can handle.

consp 11 hours ago

I learned a few days ago from a friend, when the other leak at the university was reported in the Danish media, that the "random" part is only 4 digits and as a bonus is sequential. So if you register in the country as foreign citizens together with your partner those are likely sequential.

Then again, in my country some municipalities handed out numbers starting with your birth year....

vintermann 11 hours ago

A good time to remember that cramming data into your identifiers will come back to bite you... It hasn't really been necessary since databases replaced library catalogs anyway.

brabel 11 hours ago

guytv 9 hours ago

this is gold to countries that routinely fake other countries passports for "legends" (cover identities) for their intelligence officers working in "target countries".

IceDane 9 hours ago

This is just wrong and should be flagged by mods. It's name, CPR and address.

Gender is encoded in the CPR number.

Roark66 10 hours ago

You know, recently a medical SaaS provider's system was hacked here in Poland as well. Medical records of 20mln people covering pre 2024 back leaked. The attackers claim to have got it via a vulnerability that any company could've had. Fine.

But inside that network the security was a joke. Basically developers used real non anonymised archival data uploaded to s3 all devs had access to, to test the software. Data containing all the private stuff mentioned.

Absolute peak of incompetence. It wouldn't be hard to anonymised the data even just by hashing the names and certain other records or replace them with dummy data.

But what annoyed me the most is there is no info about huge fine for the company. No article written by the company explaining what internal failures they will fix to prevent it happening in future.

Nothing.

Those things have to be prosecuted and punished. Otherwise no one has any incentive to keep the systems secure.

Quothling 12 hours ago

As someone who spend a decade in the Danish public sector, among other things working in groups on national architecture. I'd say that we reap what we sow. IT and digitalisation is not taken very serious in our public sector. In most places it's placed under something, and until recently it didn't have it's own ministry. Right now it's even a shared ministry, and there is little focus on cyber security. What has arrived in recent years is solely based on the thread of hybrid attacks from Russia.

Compare this to the ministry of transportation, which has full resources. This is despite the fact that most people in this country spend less time commuting than they do working on a computer. Not that transportation isn't important, but maybe digitalisation is as well?

My personal CPR has been leaked a couple of times though. Hilariously the first time it was leaked when a couple of unencrypted laptops were stolen from the biggest IT union in the country. We have a system in place where you can flag your CPR as having been leaked. Though I suppose now we might as well consider every one of them to be leaked. In theory a CPR on it's own was never meant to give any sort of authority or access, but again, this wasn't the practice in a lot of place. So I guess this leak may be a blessing in disguise in that sense as well, as it'll highten security because of broken trust.

Mashimo 12 hours ago

> IT and digitalisation is not taken very serious in our public sector.

I think I get what you are trying to say, but just for other people reading this: Denmark is one of the "best" / advanced countries when it comes to IT and digitalisation in public sector in Europe.

Quothling 12 hours ago

Maybe 10 years ago, but other nations have caught up. Italy has their Sistema di Interscambio. Germany and France have taken digital sovereignty serious. Spain is big on open source (and ruby for some reason). Estonia has been miles ahead for more than 10 years. It's true that we have some ease of use systems compared to most of Europe, but we also have a lot of horror stories.

That being said it's not like us being shit at cyber security doesn't mean other countries aren't also shit. Look at Australia getting hacked by AI. I know it's all the rage to blame OpenAI, but really, shouldn't Australia count itself fortunate it wasn't an enemy nation state? Or that their lacking security got exposed before it was.

mrweasel 11 hours ago

Mashimo 11 hours ago

porsager 11 hours ago

Another Dane here, and that is absolutely not true. Where's your source to back up this claim? (I'll show you mine if you show me yours)

Mashimo 10 hours ago

KingMob 11 hours ago

Can't speak for the Danish govt in general, but you should look up the history of the property tax scandal and the projects that tried to fix it. I was part of the third attempt to rectify the problem at SKAT.

Mashimo 11 hours ago

bryanrasmussen 10 hours ago

Just to note - the population of Denmark is 6,032,304.

So essentially the whole population's data has leaked. Furthermore, the notice says mv, which is abbreviation for etc. So it says "name, address, cvr number" etc.

That etc. is funny because the Danish government has a thing called NemID which you use to log into pretty much any online service, including banking, and you can install it on your phone, and when you lose it though you can verify by calling up and giving personal information to verify it is you.

Now there are a bunch of things about this system that are contemptibly stupid and annoying that I won't go into here because of my blood pressure. But now I wonder if the mv. of the personal data covers stuff you could conceivably be using to get a new NemID.

on edit: the really young have not had their data leaked, probably, and the excess of course covers people who used to live in Denmark and left.

cm2012 9 hours ago

I am going to be very curious to see if there are any downsides or negatives at all to this hacking happening. In theory this information could be used to scam a lot of Danes. In practice these major hacks end up fizzling out, in my experience - the data being less useful or more duplicated than people thought.

fwn 3 hours ago

Just because we cannot identify any disadvantages does not mean that there are none.

Imagine a foreign state-sponsored agent waiting at the door of a public or private decision-maker, convincing them to cooperate. Home addresses are no joke. Especially if you can grep through the whole family tree.

cm2012 3 hours ago

ulrikrasmussen 10 hours ago

I think you mean MitID, but yes. I have tried going through the process of getting a new MitID at the citizen service desk, and the questions I am asked to verify that it is me are almost all family related. If the leaked data reveals things like parent/child and spouse relationships then that process is cooked.

bryanrasmussen 5 hours ago

according to this article which I linked earlier because I thought the non-Danish readers might appreciate it, it "can include" family relationships

https://cphpost.dk/2026-10-05/life-in-denmark/cpr-data-breac...

bryanrasmussen 5 hours ago

ah yes, sorry, I worked on the NemID project and I often put NemID in place of MitID when I'm tired.

m12k 11 hours ago

This comes only a few days after a data breach was reported at the Technical University of Denmark [1], exposing the personal records of current and past students, faculty and staff. That included their CPR numbers (government id at the central person registry), that could for example be used to look up their official place of residence. All in all, it seems likely that someone just got the table they needed to join on the first breach.

[1] https://www.dtu.dk/english/newsarchive/2026/10/cyberattack-o...

madsohm 10 hours ago

I see this as a good thing. It means that we'll (hopefully) get stricter security revolving around using these numbers. It'll no longer be enough just to yap out a 10 digit number to "verify" you are who you say you are. We already have a (albeit heavily critiqued) national 2FA system in place (MitID).

We'll have to start treating the CPR number as just a username, instead of a password. It should never have been "secret" in the first place.

yturijea 10 hours ago

Totally agree, and I am unsure why it has not happened after the last breach we had, was it 8 years ago? I dont see this breach as any significance as I thought it was all breached anyway earlier.

Any agree, it should be only a username and MitID is the verifier(password) and without both, it should simply be impossible to create any kind of binding contracts like loans etc. anything else is simply sloppy policy from the government. but again no politician understands IT, neither does the majority in EU about the implications of chat control...

spragl 9 hours ago

What you write is correct, but it wouldnt make any difference in this case. The information would have been leaked anyway.

It will take a whole new approach to confidential information to really make a difference. I think we need to go the SSI way, and I think at some point we will.

jakub_g 12 hours ago

In the past few months, there were several huge data leaks also:

- in Poland (from private medical companies used by doctors) with estimated 20M affected people (half of population)

- in France (from tax office), 678k people affected

With AI getting more capable, and with Russia escalating things, I unfortunately expect more to come.

Tangurena2 9 hours ago

Or 153M driver's licenses & passports in the US leaked from IDScan.net:

https://krebsonsecurity.com/2026/09/fbi-probes-service-selli...

adlotsof 11 hours ago

- Germany, Berlin: personal information of civil servants, secret information about civil protection, emergency communication systems of the german gouvernment, overall 6 TB data

233mhz 12 hours ago

Gun ownership records were leaked in france recently too, including identity and address.

archixe 13 hours ago

The article mentions that they accessed the information through a Danish company whose access has been revoked now. I find it really surprising that a company could access these records without any limitations on which info or how many records they can pull.

haute_cuisine 10 hours ago

Claude, calculate salaries, make no mistakes. (they probably forgot the last part)

I wonder if company used some kind of automation that decided it needs all CPRs for whatever it was doing.

hn_submit 10 hours ago

I demand our representatives come up with legislation that puts hefty fines on data breaches.

Companies are opting for higher profits by not investing in securing private data entrusted to them. We need to make the balance tip the other way.

As long as there aren't any financial or criminal penalties companies will not care about data being pilfered.

Tehnix 7 hours ago

They only thing I can think of that a person could get out of having my data is they can pick up my subscription at a pharmacy, where it’s normally enough to mention your CPR number, and then the pharmacy asks you to confirm what name it’s registered to.

Anything else like banking or anything official requires a MitID authentication, and no one malicious can just e.g. open a bank account in my name. They’d have to go through several authentication confirmations usually.

Are there other areas where we are lax about CPR still?

KingOfCoders 12 hours ago

If people don't go to jail, there will be no change.

Gareth321 11 hours ago

The EU would rather destroy our right to privacy than hold criminals accountable. If I sound bitter it's because I have become very bitter over the last decade. The EU appears very effective at picking on individuals and people who can't fight back, and absolutely toothless when it comes to taking on more powerful interests. There are very few cases of the EU tangibly improving my life over the last decade, and countless examples of making it worse.

KingOfCoders 10 hours ago

"and absolutely toothless when it comes to taking on more powerful interests. "

Like Google and Apple?

"and countless examples of making it worse."

Which would those be? I would be interested to know.

Gareth321 10 hours ago

raxxorraxor 12 hours ago

Problem is that the EU will even go further here and tries to implement that everyone is forced to id themselves despite the regular problems.

TacticalCoder 11 hours ago

> If people don't go to jail, there will be no change.

The EU being the EU, it's those criticizing the leak by governments of public data that are going to be sent to jail.

KingOfCoders 10 hours ago

"it's those criticizing the leak by governments"

If this is a general trend in the EU, what people went to jail for criticizing the leaks?

nhma 10 hours ago

Oh no, the evil EU police will throw us all in EU jails!

iphonecorridor 9 hours ago

We probably need to value privacy less. I went to a hospital in 3rd tier city in China and all the patients were in a room milling around a doctor with their charts. He’d randomly pick a person, look at their charts, do some basic tests (looking in throat etc), and write them scripts. All with everyone listening. Seemed wild. But pretty efficient! To get my visa, I had to have a chest xray, ab ultrasound, bloodwork, ekg etc etc… it was me in line with 100 other visa folks all going from one station to the next fully hearing results or seeing everyone else. Scary! But honestly it was one of the most efficient health experiences I’ve had and I still refer to the results! (Spotted “fatty liver” and got me to drink less.)

still-learning 3 hours ago

Need to pay your cybersecurity people

panzi 4 hours ago

8.8 million people? Wikipedia says Denmark only has 6 million people! Historical data too? People from other countries that had any treatment in Denmark?

clan 14 hours ago

CPR is the national register of all people (Central Person Register).

CPR is the administrator. There is more information in the linked press release from the ministry:

https://ufm.dk/aktuelt/pressemeddelelser/2026/oktober/omfatt...

This is a huge headline story in Denmark today and I choose to link danish content as they are the primary source.

The only current english language sources are paywalled:

https://www.thelocal.dk/20261005/hackers-get-personal-info-o...

https://www.bloomberg.com/news/articles/2026-10-05/denmark-d...

Non-paywalled but major danish news outlet (National Brodcaster):

https://www.dr.dk/nyheder/indland/live-uvedkommende-har-haft...

lode 13 hours ago

Another non-paywalled English article from a Danish source: https://cphpost.dk/2026-10-05/life-in-denmark/cpr-data-breac...

WA 11 hours ago

Will they be fined? (Probably not)

Will Danes be compensated for the hassle, this causes them? (Probably not)

Will Danes be hassled with GDPR-compliance in every business, school etc. even though the state can't keep records safe? (Probably yes)

zunintoku 8 hours ago

What's with the state jab, this was a business leaking it

hastily3114 12 hours ago

As someone who works with CPR data in Denmark, this does not surprise me at all. Private companies access the data through an API, and anyone who works at such a company can look up CPR data as they please.

spragl 10 hours ago

That is also my impression. So I wonder how they caught this. It will be interesting if they are going to say so at some point.

JeanCampos 9 hours ago

The funny part is that the info just have any value in a system that works fairly well, but stolen data reduce the trust on the system, so decrease the value of that very thing that is being stolen...

I do not think we will ever go back to the wild west, but it is also hard to think a future that follows this very tendency.

Before we had natural disasters to worry about and now we have those + cyber ones.

cimi_ 12 hours ago

Denmark's population is 6 million [0], where does the diff of 2.8M come from? :)

[0] https://www.dst.dk/en/Statistik/emner/borgere/befolkning/bef...

cimi_ 12 hours ago

Answering my own question, from here[0]: 'approximately 8.8 million registered persons (living, departed, deceased, etc.)'

[0] https://ufm.dk/aktuelt/pressemeddelelser/2026/oktober/omfatt...

pelagicAustral 12 hours ago

It's explained in the article, the dataset includes foreign nationals/temporary residents and some deceased people as well.

eric4smith 11 hours ago

Wait... wait wait... I thought the EU "protection" laws was supposed to prevent all of this?

hoppp 11 hours ago

Probably everyone in Denmark got breached. That sucks but 2FA identity verification already exists to access personal info

HenrikPontoppid 10 hours ago

I live in Denmark.

The 2FA verification system in place now has not had any reported breaches but is nevertheless an absolute joke. I use GrapheneOS on my personal phone which cannot use the government 2FA due to the arbitrary Android integrity API. I therefore use my old phone on which it works perfectly. The catch is that it hasn't been updated in over three years lol.

When the ministry responsible for the 2FA system was asked to allow it to be run on degoogled OSes, they refused saying it would be too costly to develop for "other systems". The responsible authority doesn't even know degoogled Android is still Android. And you expect these people to protect your private information and health records.

It was also leaked some time back that the Danish government let the NSA spy on every citizen in the country for literally nothing in return. Unconstitutional? Yes.

hoppp 10 hours ago

Its the MitId app that don't run on Graphene OS?

Yeah, it's probably easy to bypass too, if they are not actively maintaining it there are definitely holes in the system.

I think bad and expensive government software systems are a global norm, still the Danish system is more private than the Swedish where all it takes is a name and everyone's home address can be searched for.

sgt 29 minutes ago

Maybe even dhh got breached. If only this system had been vibe coded in rust, this would have never happened /s

bryanrasmussen 10 hours ago

drchaim 11 hours ago

yeah, a this rate, we can assume all digital information will be public at some point.

chrisjj 10 hours ago

And unofficially - giving free rein to malicious misinformants everywhere.

Not long now before people get extorted for correction of doctored leaked sensitive personal details.

ionwake 12 hours ago

Just so everyone understands the numbers thats basically everyone in Denmark.

Ekaros 11 hours ago

Everyone in Denmark dead or alive... I wonder how many years or decades it takes to clean up the dead from there.

ionwake 11 hours ago

You are right lol, damn!

IceDane 8 hours ago

For some more context for non-danes:

Basically any company can access to an API that lets you look up CPR(~SSN) numbers, and a lot of companies have access.

What has most likely happened is such an integration has been abused - we do not yet know whether it's by mistake or by some malicious third party. It wouldn't surprise me in the slightest if this is just the result of someone's Claude agent telling them that they can improve lookup times if they just enumerate every CPR number and cache them, for example - but we don't know yet.

sedan_baklazhan 3 hours ago

I’ve opened the story just to search for “Russia”

Of course, Russia is being blamed twice for this data breach in the comments.

I am not disappointed.

m00dy 8 hours ago

Danes have never been good at cybersecurity.

ByeByeSpace 5 hours ago

GDPR already says companies should only keep data they actually need. Breaches like this suggest the fines still aren't big enough to change how they behave.

rimliu 11 hours ago

And guess who are pushing for the Chat Control.

nephihaha 12 hours ago

Isn't that more than the current population of Denmark? Who were the other exposed people?

kzrdude 7 hours ago

People like me, who have a CPR-nr from the time I used to work in Denmark.

KingMob 11 hours ago

Foreign residents and dead people, apparently.

LarsKrimi 12 hours ago

Altman at it again?

_s_a_m_ 10 hours ago

so more data breached than people live in Denmark..

rvz 12 hours ago

Let me guess, the Danish government will find a way to prove that GDPR doesn't apply to them.

But this is incredibly bad.

shiandow 12 hours ago

It does apply but they were allowed to have this data and GDPR does very little to protect it in that case.

tamimio 7 hours ago

Lol, I remember few months ago here in HN and some swedish or danish user telling how they are happy with the amazing cashless system and society there and how it’s better than cash.. there you go, breaches happen and so it blackouts. That being said, one of the issues is private companies are allowed to request personal and private information, no matter how security is, it’s eminent to get hacked or phished, like revoult, I wanted to use their platform weeks ago and they requested to “verify my ID” refused and didn’t use it, few weeks later and they suffer a data breach because some idiot employee emailed the data to someone saying they are gov.. you can never trust, zero trust in fact. Instead, there should be a way (like tokenization) to prove the identity without the 90s method of scanning the ID like how we used to fax things back then, except it was more secure that way ironically.

amelius 11 hours ago

"Something is rotten in the state of Denmark"

tokai 9 hours ago

At least they didn't mail a CD containing data on 5 million danes directly to the Chinese this time.

It really is a nothing burger this data has been leak multiple times, and is easy for any bad actor to get their hands on at any time should they need to.

goreyee 10 hours ago

Almost said the n-word reading that danish title...

johnwalker67 14 hours ago

I am so done, my cpr is leaked oh no. Like I don't

clan 13 hours ago

This is were security meets the real world. The number is not secret but people have been taught to keep it confidential. And when you know the last 4 digits social engineering har become a lot easier.

Ekaros 13 hours ago

On positive side maybe now there is no reason to use it for authentication anymore. When it was always unsuitable for that reason.

clan 12 hours ago

aDyslecticCrow 13 hours ago

CPR isn't the problem, the rest of it is.

thiagoperes 12 hours ago

it feels this will keep happening specifically to Europe for three reasons: a) most countries took an anti-AI approach b) they reject frontier models in favor or "Sovereign" solutions c) they're replacing software with weaker/more vulnerable options

public servant engineers are token poor and will be out of the latest defense tools

Mashimo 12 hours ago

I don't think this is AI related at all. What makes you say that?

chrisjj 10 hours ago

Scorned AIs taking revenge? :)

sunbum 10 hours ago

The data got leaked by a private company.