Bouygues Telecom
Disclosed Aug 6, 20251 year ago6,400,000 affectedConfirmed
Cyberattack exposes data of 6.4 million Bouygues Telecom accounts
Bouygues Telecom detected a cyberattack on August 4, 2025 that exposed personal data on 6.4 million customer accounts, including contact and contract data, civil status and IBANs; it reported the breach to CNIL.
What is known
| People affected | 6,400,000 (as reported by the organization) |
|---|---|
| Disclosed | Aug 6, 2025 |
| Discovered | Aug 4, 2025 |
| Happened | Aug 4, 2025 |
| Attack | Hacking |
| Data exposed | Financial, Dates of birth, Emails, Names, Phone numbers, Addresses, Other |
| Sector | Telecom · FR |
| Status | Confirmed |
| Check your email | Have I Been Pwned |
Sources
| Source | |
|---|---|
| Have I Been Pwned: Bouygues Telecomhaveibeenpwned.com · Aggregator | Aggregator |
| Bouygues Telecom disclosurecorporate.bouyguestelecom.fr · The organization | The organization |
| Data breach at French telecom giant Bouygues affects millions of customerstechcrunch.com · News | News |
| Bouygues Telecom confirms data breach impacting 6.4 million customersbleepingcomputer.com · News | News |
Notices filed
| Where | Filed | People |
|---|---|---|
| Researchtotal | Aug 6, 2025 | 6,400,000 |
| Have I Been Pwnedaccounts in the data | Sep 24, 2025 | 5,685,771 |
History of this record
- 2026-09-25 · source_type: aggregator to press · seed source
- 2026-09-25 · source_url: https://haveibeenpwned.com/Breach/BouyguesTelecom to https://techcrunch.com/2025/08/07/data-breach-at-french-telecom-giant-bouygues-affects-millions-of-customers/ · seed source
- 2026-09-25 · country: empty to FR · seed source
- 2026-09-25 · data_types: ["financial","dob","emails","names","phone","addresses"] to ["financial","dob","emails","names","phone","addresses","other"] · seed source
- 2026-09-25 · records_basis: hibp to organization · seed source
- 2026-09-25 · records: 5685771 to 6400000 · seed source
- 2026-09-25 · disclosed: 2025-09-24 to 2025-08-06 · seed source
- 2026-09-25 · discovered: empty to 2025-08-04 · seed source
- 2026-09-25 · summary: 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. to Bouygues Telecom detected a cyberattack on August 4, 2025 that exposed personal data on 6.4 million customer accounts, including contact and contract data, civil status and IBANs; it reported the breach to CNIL. · seed source
- 2026-09-25 · title: empty to Cyberattack exposes data of 6.4 million Bouygues Telecom accounts · seed source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (Have I Been Pwned), confirmed by Company page. Record counts are as reported. Not legal advice.