INSPECTING ARCHIVED INTELLIGENCE (OUTDATED VERSION).

Bouygues Telecom suffers massive data breach exposing 6.4 million customers

| 2025-08-08 10:25 CRITICAL LOW DATA BREACH
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Executive Summary
AI-generated
On August 8, 2025, Bouygues Telecom in France confirmed a data breach exposing personal data of approximately 6.4 million customers, which is the second such incident to hit French telecoms operators in a month. The company has notified France's data protection authority CNIL and national cybersecurity agency ANSSI. Similar attacks on US phone providers have been attributed to the China-linked Salt Typhoon hacking group. In this breach, personal data includes contact details, contractual data, civil status data, IBAN numbers, but bank card numbers and passwords were not affected. The company is warning customers to be vigilant against phishing attempts and fraudsters may try to obtain additional information such as credit card numbers or usernames and passwords.
Technical Mitigations AI-generated
• Block phishing attempts by verifying the caller's identity and contacting your bank or advisor directly. • Monitor account activity for suspicious transactions, especially after a data breach notification. • Use strong passwords and avoid sharing them with anyone.
Intelligence Metadata
Actors / Malware / CVEs / Campaigns
Salt TyphoonSalt Typhoon
Target & Sectors
FR
telecommunicationstelecommunications
Incident Timeline
‎2025/08/08
Threat actors using an unknown vector breached Bouygues Telecom's systems, exposing personal data of approximately 6.4 million customers.
victims 6.4 Bouygues Telecom customers
6.4 million Bouygues Telecom customers just had their data exposed in a huge data breach – and it's the second to hit French telecoms operators in a month.
threat_actor Salt Typhoon
However, similar attacks on US phone providers have been attributed to the China-linked Salt Typhoon hacking group.
victims 27 customers
The company, which provides mobile, broadband, and digital TV services, said it discovered the breach, affecting 6.4 million of its 27 million customers, earlier this week.
Tactical Metrics
Metrics
victims
6,400,000
Bouygues Telecom Customers
6.4 million Bouygues Telecom customers just had their data exposed in a huge data breach – and it's the second to hit French telecoms operators in a month.
Metrics
victims
27,000,000
Customers
The company, which provides mobile, broadband, and digital TV services, said it discovered the breach, affecting 6.4 million of its 27 million customers, earlier this week.
Intelligence Sources
IT Pro 2025-08-08