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Breach occurred 2025-11-13Verifiedeurofiber.com
What happened
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 responsibility for the breach alleges to have additional, more sensitive data including screenshots, VPN configuration files, credentials, source code, certificates, archives, and SQL backup files.
Data exposed
Frequently asked questions
The Eurofiber data breach occurred on November 13, 2025. It was added to Have I Been Pwned's breach catalog on November 20, 2025.
10,003 accounts were affected by the Eurofiber data breach, according to Have I Been Pwned's records.
The Eurofiber breach exposed the following data types: Email addresses, Names, Phone numbers.
Yes. Have I Been Pwned has verified the Eurofiber breach, meaning there's confirmed evidence the exposed data is genuine and tied to real accounts.
Use KazaSec's free Email Breach Checker (/tools/breach-check) to check whether a specific email address has surfaced in the Eurofiber breach, or any other known breach — the tool never stores what you search.
Our free Email Breach Checker tells you whether a specific email address has surfaced in this breach — or any other known breach — without ever storing what you search.
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