France's tax agency got hacked (in French)
cybernetica.fr
cybernetica.fr
- The last two sections (≈20% of the article, 5.Cloud and 6.IA) are barely relevant.
- Some comparisons are questionable. It claims that, since some taxes data was compromised, the trust in the national Federated Identity is eroded "as if Facebook Connect was hacked". That's strange, I think it should be "as the trust in Facebook Connect would be eroded when Facebook is hacked". Anyway, I think most people won't care.
- Some sentences make no sense: "Le piratage de Ficoba semble en être l'exemple type"... But "Ficoba" is not mentioned anywhere, and, though I know what the word means, I can't guess what the sentence points to.
The OP should have mentioned another important hack of French national structures that happened in december 2025 and which is well documented. IIRC, through phishing, a keylogger was installed on a teacher's computer. Then the hackers got credentials to an internal training platform for teachers. Then they exploited multiple security breaches and connections between Ministries to get access to the national police files.
The taxes services is one of the oldest online government service in France that has existed, with a very wide usage.
As people had already that authentication as an identity provider, it was natural to reuse that authentication (not the password, but 3rd party auth à la OAuth, but a french government standard) to authenticate to government services that went online later.
So if the taxes auth is compromised (so far I haven't seen enough details about the coverage of the leak), that's a real concern.
Got hacqued.
While in Singapore I was able to get ahold of some policeman who made some calls and was told it was waiting for me at the Lost and Found inside the Nice airport gift shop. I thanked him and made 24 hour layover in Nice.
Well, getting to the airport, I came tk this shop. I asked about the “sac a dos gris” in the other room. They checked their ordinateur: “NO, je suis desolee”. Sorry sir! I said you definitely have it, can you please go to that other room and check? “No sorry we cannot. It is not here. After a week we give things to the municipal lost and found. At the polics station. Go there.”
The day was ending (French govt services work til 4pm) so I raced to the municipal police station in Nice. I arrive and they have a bunch of keys and other things people lost around the city. I barely speak French but luckily a middle-aged lady was there who spoke good English. She helped me ask them. “No. Sorry. It is not here.” Are they sure? “Yes, we checked. Not here.”
She gave me a ride on her vespa (she had a motorcycle) and I treated her to dinner while we discussed the situation. We agreed I should go to the central police station after that and file a missing item report. Which I did (spoiler alert: doesn’t do anything, but standing in line is less than in US cities).
That night I chose to stay at some rinkydink place in Nice, because why not (I was by myself) and got up around 4am to take the bus to the tram network’s lost and found — the last place it could be. I would have aittle time before my flight.
In the morning I got up early and got to that Lost and Found, before my flight. I had one hour. It was located near a university, and after wandering around I had found the little enclave. The staff there were very nice — but they didn’t have it either!
I flew home, dejected. My backups hadn’t been perfect; I had a lot of stuff on that computer, including an iOS App on XCode that I had to release to a lot of people! (And a couple Metamask wallets.)
Anyway I kept in touch with the nice policeman throughout. He went to the airport lost and found - the same one which refused to check the other room because their computer said it wasn’t there — and CONFIRMED that my bag was there. They had let him check the back room, you see!
But I wasn’t in Nice anymore. I filled out a “troov.com” report and explained where it was. They had found it! Paid for FedEx. Over the next few days thanks to the Tracking I saw it go to the central station in France and then sent back. Because it was missing a customs form for USA. I had filled out that form, but something had been wrong. I had spoken to the main FedEx customs-facing team in Memphis for a few days, and they thought it was in USA already. They were wrong. Their system was also blind to this. Anyway, I saw it go back to that airport lost and found, a week later. Lost about $100…
Then, the lady offered to come pick it up for me. She came, and was thankfully given this bag. She mailed it with DHL, and I received it. It was really overjoyed when it finally arrived, a month and a half after I had lost it! I of course sent the lady a payment to cover the cost. She did not want any other compensation. We are still friends to this day, and when my dad goes to France, I am putting them in touch.
One moral from this story is: French employees love to say “No” to anything and everything. If their computer says the thing isn’t there, they won’t budge even when it’s the easiest thing to just check the other room manually. Unless you are a local policeman!
The other moral - back up your stuff! Have SyncThing or your own machine in the cloud. Especially if you travel to conferences, like me.
The other issue is that public service employees tend to be huge slackers, and when you have the misfortune of ending up in a situation that requires multiple people working together, you'll be probably there for a few weeks because they can't go further than their own desk.
When I was coming back from Canada, I had to remake my social security card since it was transferred to Canada (through an official transfer that made me eligible to the Canadian social security). But in France, no one knew how that worked, and I basically spent two months calling them weekly for updates (with various people telling me contradictory things) before someone finally went ahead and made sure all the necessities were taken care of.
I frankly hate dealing with French public services and avoid it like the plague.
Why is that so? I’ve seen it in literally every single country I’ve had to deal with the authorities across Europe, Asia, and the Americas.
Even in countries we like to call progressive (eg Finland, Estonia) the public service workers are so much slower than their compatriots in the private sector. (Even though they are still much faster than the lethargic dinosaurs you meet in Germany)
When a project falls through in the private sector, it can be existential for the workers or at least make their lives difficult in the future (anyone who has worked for a cash constrained business knows it just generally sucks).
When a "project" falls through in the government, oh well, see ya tomorrow.
Obviously an overgeneralization.
In general employees in lost and found offices are quite low on the social scale, but still in a position of power regarding people coming to the office. I guess that this behaviour is not so french. In some other countries where corruption is common in public services in relation to low wages, worse things may happen at lost and found.
I initially put up a request in their system, which did not match anything when they found it. I ended up finding it in their "public" listing (not really public, I think they ask for a ~10€ registration fee).
Anyway, when I got it back, I tried to argue with the employee that the phone did not, in fact, have a case. But they were adamant that it did. I ended up shrugging it off, happy enough to have my phone. But some people really don't care. Maybe someone filed your bag as something else, and then it wouldn't appear in the system, and weren't bothered enough to go look inside.
Most media outlets will use "pirate informatique" (or just "pirate") when talking about hackers, and "piratage" for hacking. Example: [2]
[0] https://en.wikipedia.org/wiki/Office_qu%C3%A9b%C3%A9cois_de_...
[1] https://vitrinelinguistique.oqlf.gouv.qc.ca/resultats-de-rec...
[2] https://www.lapresse.ca/actualites/justice-et-faits-divers/2...
Les mois suivants, des individus se présentent au domicile de licenciés en se faisant passer pour des policiers ou des gendarmes, parfois en tenue, pour se faire remettre des armes. Des vols sont constatés à Nice, à Paris, à Limoges, à Décines."
Sounds like a far fetched movie!
For government services, they are getting more and more common, it's scary.
Those same countries that treat financial privacy as axiomatic are trying their best to undermine chat encryption and would throw ed Snowden in prison given half a chance.
Anyway, the main problem is that the breaches into the many French national data stores seem increasingly frequent.
My guess is since a global conflict is ramping up this is only the beginning and we are about to see some real damage.
It is fairly easy to create chaos in a country for a few weeks if you start disrupting the grid, payments or internet access.
It's probably the quickest way to punish those people, just regular data leaks from the tax bureau.
I'm probably too optimistic, since this data is probably not admissible in court.
Weak.
* French tax authority (DGFiP) breach › ~678,000 records leaked, names, tax bracket, reference income, withholding rate
* Detection gap › intrusion spotted and cut off in late June, but the actual data theft wasn't discovered until the stolen data went up for sale on Aug 12, over a month later
* Second breach, same attacker › land registry (cadastre) systems, late July, claimed 2M+ people affected, alleged MFA bypass
* Third incident › French Ministry of Education systems also compromised in late July (staff data since 2001), disclosed quietly with little press coverage
* Legal precedent cited › a 2023 EU Court of Justice ruling (stemming from Bulgaria's 2019 tax agency breach) established that fear of misuse alone counts as damage, and shifts the burden of proof onto the agency to show its security was adequate
* Root cause argument › legacy "trust everything once you're inside" architecture, opposite of zero-trust, extended via remote/VPN access since COVID without redesigning the underlying trust model
* Systemic issue › France's NIS2 transposition law has been stalled in parliament since 2024, partly over a dispute involving encryption backdoor provisions
* Broader angle › piece also covers AI's growing role on the offensive side of cybersecurity, and the US scaling back international cyber-cooperation efforts through 2025–2026
How many workplaces have I seen like this? A tale as old as IT.
And kids are back to school in one week.
I was wondering how they would find a way to blame the United States.