Maileva (La Poste) cyber-attack: 22 million French citizens affected by data breach
The subsidiary of La Poste dedicated to sending professional mail has confirmed the hacking of data belonging to 22 million people in mid-September.
Personal data of 22 million French citizens exposed following Maileva attack
According to ouest-france.fr, the management of Maileva, a subsidiary of the La Poste group via Docaposte, confirmed on Saturday 14 November 2026 in a statement transmitted to the Agence France-Presse (AFP) that data belonging to its users had been hacked in mid-September 2026. The information had been revealed first by specialised websites FrenchBreaches and Cyberattaque.org.
The exposed data concerns the first name, surname and postal address of the affected individuals. Maileva clarified that other information, notably bank details, do not form part of the stolen elements.
Maileva is a platform specialising in sending professional mail for businesses: pay slips, registered letters, invoices, general assembly convocations. The company claims more than 70,000 users and indicates it has dispatched 180 million documents in 2024, which explains the scale of the volume of data concerned.
In total, 22 million people are potentially targeted by this theft, equivalent to approximately one in three French citizens. The risks of identity fraud or targeted phishing attempts using the stolen postal addresses remain a central concern for the authorities and cybersecurity specialists.
Source: Google News LU FR