Halcyon Technologies
Data Breach on February 16, 2026
| Data Breach Report | |||
|---|---|---|---|
| Victim | halcyontek.com | ||
| Threat Actor | Sinobi | ||
| Date Discovered | Feb 16, 2026 | ||
| Description | Halcyon Technologies is an information technology and services company based in the USA (Texas), focused on providing custom software development. | ||
| Leak Size | 270GB |
Credential Exposure for halcyontek.com
We've indexed 34 @halcyontek.com accounts from external breaches, plus 9 credentials for halcyontek.com itself.
Last checked Aug 16, 2026
| @halcyontek.com addresses from external breaches | |
|---|---|
| Third-party breaches | 31 accounts · across 30 breaches · 25 with a plaintext password · most recent Jan 13, 2026 |
| Combo lists | 9 accounts · most recent Jul 21, 2026 |
| Passwords for halcyontek.com accounts | |
|---|---|
| Combo lists | 5 logins · most recent Jun 22, 2026 |
| Infostealer logs | 4 logins · 2 infected devices · most recent Apr 4, 2024 |
Logins may belong to customers or to staff, and the data doesn't say which. None of this is necessarily connected to the ransomware attack above.
Is your organization next?
Halcyon Technologies was breached. Check if your company's credentials have been exposed in this or other data breaches.
Check your exposure →Continuous dark web monitoring alerts you when we find leaked credentials or session tokens for your company.