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Breach occurred 2025-08-04Verifiedbouyguestelecom.fr
What happened
In August 2025, the French telecommunications company Bouygues Telecom detected a cyber attack against their services. The incident resulted in a data breach that exposed almost 6.4M customer records, including 5.7M unique email addresses. The breach also exposed names, physical addresses, phone numbers, dates of birth and IBANs (International Bank Account Numbers). Bouygues Telecom advised that all affected customers had been notified about the incident.
Data exposed
Frequently asked questions
The Bouygues Telecom data breach occurred on August 4, 2025. It was added to Have I Been Pwned's breach catalog on September 24, 2025.
5,685,771 accounts were affected by the Bouygues Telecom data breach, according to Have I Been Pwned's records.
The Bouygues Telecom breach exposed the following data types: Bank account numbers, Dates of birth, Email addresses, Names, Phone numbers, Physical addresses.
Yes. Have I Been Pwned has verified the Bouygues Telecom breach, meaning there's confirmed evidence the exposed data is genuine and tied to real accounts.
Use KazaSec's free Email Breach Checker (/tools/breach-check) to check whether a specific email address has surfaced in the Bouygues Telecom breach, or any other known breach — the tool never stores what you search.
Our free Email Breach Checker tells you whether a specific email address has surfaced in this breach — or any other known breach — without ever storing what you search.
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