logo

Eurofiber France warns of breach after hacker tries to sell customer data

ID: e9637319-f059-57e1-9ada-663ee197d9dc

STIX ID: report--e9637319-f059-57e1-9ada-663ee197d9dc

Feed Name: Bleeping Computer

Threat Score
70/100

Date Published: 2025-11-17

Date Updated: 2026-07-17

Author: Bill Toulas

...
...

Eurofiber France disclosed a breach of its ticketing system after a vulnerability was exploited and data was exfiltrated; a threat actor named 'ByteToBreach' claims to hold data from ~10,000 clients (screenshots, VPN configs, credentials, source code, certificates, backups) and is seeking payment, while Eurofiber patched the flaw, implemented mitigations, and notified CNIL and ANSSI.

Your team is not currently subscribed to this feed. You must subscribe to it in order to see this post.