Data leak at Eau Cœur d’Essonne: Names and addresses stolen

A subscriber file was stolen, but bank details do not appear to be compromised. The water company urges vigilance.

Generic image of a computer data leak.
AI

Generic image of a computer data leak.

A digital file containing personal data of Eau Cœur d’Essonne subscribers has been stolen, including names, addresses, and contract/meter references. Bank details were apparently not disclosed.

A security incident has affected the Eau Cœur d’Essonne water company. A digital file containing subscriber information was stolen. According to the National Agency for Information Security, the stolen data includes names, postal addresses, and contract and meter references. Bank details, such as IBAN and card numbers, were apparently not compromised.
The quality of the water and the continuity of service are not affected by this incident. The company emphasizes that it will never ask subscribers for their bank details, a code, or payment via phone, SMS, or email. If you have any doubts about a suspicious message, call, or visit, please contact the company at 0 800 500 191.
Based on information from the official source: Ville de Sainte-Geneviève-des-Bois (09/10/2026)