DINUM
Disclosed Jun 9, 20263 months ago73,467 affectedUnverified
French government Tchap messenger breach affects 73,467 officials
France's digital directorate DINUM said an attacker used a socially engineered account to access Tchap, the state's messaging platform, taking data on 73,467 public sector users plus over 13.5 GB of files from unencrypted public rooms. Private conversations stayed encrypted.
What is known
| People affected | 73,467 (as reported by the organization) |
|---|---|
| Disclosed | Jun 9, 2026 |
| Discovered | Jun 2026 |
| Attack | Phishing |
| Data exposed | Names, Emails, Messages, Credentials and tokens, Other |
| Sector | Government · FR |
| Status | Unverified: not yet confirmed by an official notice, a filing or the organization |
Sources
| Source | |
|---|---|
| French govt messaging service breached in account hijacking attackbleepingcomputer.com · News | News |
| Over 73,000 French govt employees affected in Tchap messenger breachbleepingcomputer.com · News | News |
Notices filed
| Where | Filed | People |
|---|---|---|
| Researchtotal | Jun 9 | 73,467 |
History of this record
- 2026-09-25 · added · seed source
First seen 2026-09-25 (Research). Record counts are as reported. Not legal advice.