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.
Compromised Data
Recommended Actions
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Affected Addresses:
5.7M
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Breach Occurred:
August 2025
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Added to HIBP:
24 Sep 2025
Recommended Actions
Change Your Password
If you haven’t already changed the password affected by this breach, do so immediately on every account where it was used.
Enable Two-Factor Authentication
Wherever 2FA is supported, add an extra layer of security to your account.
Trusted by 1.5 million paying customers. Guardio blocks scam calls, texts, emails and websites, and helps you close security gaps in your accounts, so you can go about your day with more peace of mind.
Try Guardio
Get Aura for identity theft and credit protection. Keep your assets safe with fast fraud alerts, instant credit lock, and $1,000,000 identity theft insurance. Speak to a U.S. based fraud specialist 24/7.
Try Aura
Use a password manager to generate and store strong, unique passwords for all your accounts. 1Password helps protect your data with industry-leading security.
Try 1Password