Bouygues Telecom Data Breach

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.

When did it happen?

The breach date in the public record is August 4, 2025. The record was added to the catalogue on September 24, 2025 and last updated there on September 24, 2025.

What information was reported as exposed?

• Bank account numbers
• Dates of birth
• Email addresses
• Names
• Phone numbers
• Physical addresses

These are incident-level categories. The record does not prove that every category was exposed for every affected person.

Who may be affected?

This record may be relevant to people who had an account or other relationship with Bouygues Telecom or used bouyguestelecom.fr around August 4, 2025. A catalogue entry does not establish that every customer was affected or that every listed data category applied to each person. Compare the record with an official notice addressed to you.

What should you do?

Choose actions that match the information involved. If you find signs that someone is using your identity, the Federal Trade Commission provides a personal recovery plan at IdentityTheft.gov.