Tchap additionally has flaws. Encrypted on the spot messaging utilized by public officers was the sufferer of a “ security incident » with a knowledge leak which was “managed”, the Interministerial Digital Directorate (Dinum) introduced on Monday.
The Nationwide Info Methods Safety Company (Anssi) detected on Sunday “a compromise of the Tchap service following account theft,” Dinum mentioned. It mentioned the account originating the malicious requests was “recognized” and “instantly blocked so as to take away the attacker’s persistent entry.”
The CNIL knowledgeable of the cyberattack
“Even within the case of account theft, the historical past of personal and encrypted conversations will not be accessible” and “the exchanges prone to have been consulted are due to this fact restricted to the content material of public conversations”, wished to reassure Dinum, which notified the incident to the Nationwide Fee for Info Know-how and Liberties (Cnil). Nonetheless, it has not but indicated what number of accounts had been compromised.
The specialist website FrenchBreaches, for its half, reported claims printed on the darkish net in line with which greater than 643,000 messages from 73,000 brokers in 976 chat rooms had been uncovered.
In September 2025, the federal government generalized the usage of Tchap for all public officers so as to face the “growing danger of interception of their communications” and cyberattacks. He then talked about the potential present safety vulnerabilities in client functions, equivalent to WhatsApp or Telegram.
