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Tchap (French Government) Data Breach History

Government France
Website

Tchap is the French government’s Matrix-based secure messaging platform operated by DINUM for civil servants.

This page shows all data breaches of Tchap (French Government). View the complete breach timeline, records exposed, root causes, and AI breach risk score. BreachHistory tracks disclosed data breaches worldwide.

1Total breaches
73.5KRecords breached
June 2026Last breach
29 AI Breach Risk score Moderate

Data Breach Timeline — All Tchap (French Government) Breaches

Tchap (French Government) Data Breach Summary

This page tracks the Tchap (French Government) data breach history and cybersecurity incidents affecting Tchap (French Government) (France). BreachHistory currently indexes 1 publicly disclosed or catalogued incident spanning 2026, with approximately 73 thousand records reported as exposed across all indexed events. These totals may include overlapping datasets or third-party estimates and should not be interpreted as unique affected users.

The Tchap (French Government) breach timeline includes major data breaches, cyber attacks, data leaks, credential exposures, API abuse, and other security incidents. Each incident provides details on the estimated records exposed, attack method, affected data types, and supporting public sources. Currently, 0 incidents are company-confirmed, while 1 remain unverified claims pending independent verification.

Largest Tchap (French Government) Data Breaches

The largest indexed incidents include the 2026 Tchap — French government messaging breach; 73,467 civil servants (public rooms). Record counts originating from threat actors or leak sites should be treated as estimates unless confirmed by Tchap (French Government) or a regulator. Below is the list of large data breaches:

What Information Was Exposed?

Depending on the incident, exposed data may include private messages and communications, and other personal information (PII). The exact data varies between incidents, so review each breach page before assuming your information was affected.

Tchap (French Government) Data Breach 2026

At the time of this update, BreachHistory catalogues 1 2026 incident related to Tchap (French Government). Most recent entry: 2026 Tchap — French government messaging breach; 73,467 civil servants (public rooms). New incidents are added as official disclosures, regulatory filings, or credible cybersecurity reports become available.

What To Do If You Were Affected

If you believe your account may have been involved in a Tchap (French Government) data breach, change any reused passwords, enable multi-factor authentication (MFA), monitor your account for suspicious activity, and be cautious of phishing emails or fake breach notifications.

This Tchap (French Government) breach history is maintained by BreachHistory using public disclosures, regulatory filings, security research, and clearly labelled third-party claims. For the complete breach timeline, records exposed, incident details, and AI Breach Risk Score, explore the sections on this page.

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