Grand Paris Grand Est

Confirmed:Confirmed by the organisation, a regulator or a securities filing. First reported 5 Nov 2026.

Grand Paris Grand Est reports resident data exposed via contractor flaw

The territorial public authority informed residents that a security incident exposed personal data of users of its bulky-waste collection service, following a flaw detected on 28 September on the Wastreet platform used by contractor SEPUR. The notification was reported on 5 November.

Type: Data breach
Sector: Government
First reported: 5 Nov 2026
Latest source: 5 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.

Not sure? Ask an assistant with the sources attached, or have a coding agent check your systems.

What it means for you

Claude ChatGPT

Check your systems for Grand Paris Grand Est

Claude Code Codex Cursor Claude Code (web)

Sources

Confidence 65% that this is real and correctly placed. Locations are city centroids at best. Spotted an error? Report a correction.

Grand Paris Grand Est

France2 sources

Confirmed:Confirmed by the organisation, a regulator or a securities filing. First reported 5 Nov 2026.