Colt Technology Services
Disclosed Aug 14, 20251 year agoConfirmed
Warlock ransomware steals and auctions Colt customer files
Colt disclosed an August 12, 2025 cyberattack that took services offline and later confirmed a criminal group accessed files that may contain customer information and posted document titles online; a Warlock-linked actor offered a million documents for sale.
What is known
| People affected | Not stated in the sources we have |
|---|---|
| Disclosed | Aug 14, 2025 |
| Discovered | Aug 12, 2025 |
| Attack | Ransomware |
| Data exposed | Internal documents, Employment, Financial, Other |
| Sector | Telecom · GB |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| Colt confirms customer data stolen as Warlock ransomware auctions filesbleepingcomputer.com · News | News |
| Colt Telecom attack claimed by WarLock ransomware, data up for salebleepingcomputer.com · News | News |
| Colt cyber incident advisorycolt.net · The organization | The organization |
Notices filed
| Where | Filed | People |
|---|---|---|
| Researchtotal | Aug 14, 2025 |
History of this record
- 2026-09-25 · added · seed source
First seen 2026-09-25 (Research), confirmed by Research. Record counts are as reported. Not legal advice.