Eurofiber
Disclosed Nov 17, 202510 months ago10,003 accountsConfirmed
Hacker exploits Eurofiber France ticket system to steal customer data
Eurofiber France said hackers exploited a vulnerability in its ticket management system and exfiltrated information, then tried to sell customer data; it said no critical data was affected.
What is known
| People affected | 10,003 (accounts in the leaked data, per Have I Been Pwned) |
|---|---|
| Disclosed | Nov 17, 2025 |
| Happened | Nov 13, 2025 |
| Attack | Hacking |
| Data exposed | Emails, Names, Phone numbers, Other |
| Sector | Telecom · FR |
| Status | Confirmed |
| Check your email | Have I Been Pwned |
Sources
| Source | |
|---|---|
| Have I Been Pwned: Eurofiberhaveibeenpwned.com · Aggregator | Aggregator |
| Eurofiber disclosureeurofiber.com · The organization | The organization |
| Eurofiber France warns of breach after hacker tries to sell customer datableepingcomputer.com · News | News |
Notices filed
| Where | Filed | People |
|---|---|---|
| Researchtotal | Nov 17, 2025 | |
| Have I Been Pwnedaccounts in the data | Nov 20, 2025 | 10,003 |
History of this record
- 2026-09-25 · source_type: aggregator to press · seed source
- 2026-09-25 · source_url: https://haveibeenpwned.com/Breach/Eurofiber to https://www.bleepingcomputer.com/news/security/eurofiber-france-warns-of-breach-after-hacker-tries-to-sell-customer-data/ · seed source
- 2026-09-25 · country: empty to FR · seed source
- 2026-09-25 · sector: tech to telecom · seed source
- 2026-09-25 · attack: unknown to hacking · seed source
- 2026-09-25 · data_types: ["emails","names","phone"] to ["emails","names","phone","other"] · seed source
- 2026-09-25 · disclosed: 2025-11-20 to 2025-11-17 · seed source
- 2026-09-25 · summary: In November 2025, Eurofiber France disclosed a data breach of its ticket management platform . Data containing 10k unique email addresses and a smaller number of names and phone numbers was subsequently leaked. A threat actor claiming respo to Eurofiber France said hackers exploited a vulnerability in its ticket management system and exfiltrated information, then tried to sell customer data; it said no critical data was affected. · seed source
- 2026-09-25 · title: empty to Hacker exploits Eurofiber France ticket system to steal customer data · 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.