What was exposed, when it happened, and which databases confirm it.
- accounts
- 11,308,756
- Breached
- August 4, 2025
- Last Update
- September 24, 2025
Were you caught in this breach?
Search your email, phone number or username against every record CheckLeaked indexes.
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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.
Compromised Info
- Bank account numbers
- Dates of birth
- Email addresses
- Names
- Phone numbers
- Physical addresses
Attestation
Four independent databases catalog this breach and they do not always agree. Each lane below is one source’s own count.
Sources & Link Methods
- LeakCheck— linked via automatic string matching
- HIBP
FAQ
What was leaked in the BouyguesTelecom breach?
The BouyguesTelecom breach exposed: Bank account numbers, Dates of birth, Email addresses, Names, Phone numbers, and Physical addresses.
When did the BouyguesTelecom breach happen?
The BouyguesTelecom breach was disclosed on August 4, 2025 and affected 11,308,756 records.
Am I affected by the BouyguesTelecom breach?
Search your email, phone or username at checkleaked.cc to find out whether your data appears in the BouyguesTelecom leak.