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Delcampe
Lille, France4 sources
Confirmed:Confirmed by the organisation, a regulator or a securities filing. First reported 6 Nov 2026.
Delcampe confirms security incident exposing collectors' data
The collectibles marketplace confirmed a security incident that exposed users' names, pseudonyms, postal addresses, credentials and purchase information. The company disclosed the incident on 6 November.
- Type
- Data breach
- Sector
- Retail
- First reported
- 6 Nov 2026
- Latest source
- 6 Nov 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 Delcampe
Sources
4- cyberattaque.org6 Nov 2026cyberattaque.org/delcampe-les-adresses-et-les-achats-de-collectionneurs-derobes-lors-dune-cyberattaque
- konbriefing.com6 Nov 2026konbriefing.com/en-topics/cyber-attacks.html
- frenchbreaches.com6 Nov 2026frenchbreaches.com
- cyberattaque.org6 Nov 2026cyberattaque.org
Confidence 90% that this is real and correctly placed. Locations are city centroids at best. Spotted an error? Report a correction.