Fédération française des échecs
Asnières-sur-Seine, France1 source
Claimed:ChimeraZ claimed it on a ransomware leak site on 30 Oct 2026. Not confirmed by the organisation, so treat it as a claim, not a fact.
ChimeraZ claims French chess federation billing records
The hacker ChimeraZ claimed to have released 15,730 billing records linked to the Fédération française des échecs, covering nearly 18 years of activity to 17 October 2026. The federation had not confirmed the claim.
- Type
- Data breach
- Sector
- Nonprofit
- Records
- 15.7K records claimed
- Claimed by
- ChimeraZ
- First reported
- 30 Oct 2026
- Latest source
- 30 Oct 2026
What to do
- This is only a claim by the attackers so far. Do not panic, but do the basics:
- If you have an account, change that password, and anywhere you reused it.
- Turn on two-factor authentication, ideally an authenticator app or passkey, not SMS.
- Treat this as unverified. Ask the organisation directly before acting on it.
- If this is a vendor of yours, ask what of your data they held and whether it was in scope.
- Reset any API keys, SSO trusts or shared credentials you have with them.
Not sure? Ask an assistant with the sources attached, or have a coding agent check your systems.
Check your systems for Fédération française des échecs