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Pierres et Mer
Quimper, France2 sources
Reported:Reported by the press on 29 Oct 2026. The organisation has not confirmed it yet.
Pierres et Mer internal records leaked after cyberattack
More than 45,000 internal records were leaked from Pierres et Mer following a cyberattack. The specific nature of the data and the extent of the breach were not fully detailed in the report.
- Type
- Data breach
- Sector
- Hospitality
- Records
- 45.6K records reported
- Attributed to
- idorable
- First reported
- 29 Oct 2026
- Latest source
- 29 Oct 2026
What to do
- 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.
- Expect phishing that uses your real details. Do not click links in messages about this incident; go to the company's site directly.
- If payment cards were involved, watch statements and ask your bank for a new card.
- If government ID or social security numbers were involved, consider a credit freeze.
- 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.
- Brief your help desk: attackers often impersonate the breached brand next.
Not sure? Ask an assistant with the sources attached, or have a coding agent check your systems.
Check your systems for Pierres et Mer
Sources
2- konbriefing.com29 Oct 2026konbriefing.com/en-topics/cyber-attacks.html
- cyberattaque.org29 Oct 2026cyberattaque.org/pierres-et-mer-plus-de-45-000-enregistrements-internes-en-fuite-apres-une-cyberattaque
Confidence 70% that this is real and correctly placed. Locations are city centroids at best. Spotted an error? Report a correction.