Ma Déco de Fête
France1 source
Claimed:ChimeraZ claimed it on a ransomware leak site on 31 Oct 2026. Not confirmed by the organisation, so treat it as a claim, not a fact.
ChimeraZ claims leak of 45k Ma Déco de Fête customer records
ChimeraZ leaked 45,156 records concerning about 13,000 people, including personal contact details, payment histories, hashed passwords and building access codes.
- Type
- Data breach
- Sector
- Retail
- Records
- 13K records reported
- Claimed by
- ChimeraZ
- First reported
- 31 Oct 2026
- Latest source
- 31 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 Ma Déco de Fête