THREAT OPS › Threat News › Qilin Claims ATF Breach as Agency Confirms “Major Incident”
Qilin Claims ATF Breach as Agency Confirms “Major Incident”
<h1>Qilin Claims ATF Breach as Agency Confirms “Major Incident”</h1> <p>The Qilin Ransomware group listed the <strong>Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF)</strong> on its Dark Web leak site on August 26, 2026, the same day <a href="https://www.atf.gov/news/press-releases/atf-responds-to-cybersecurity-incident" rel="nofollow noopener" target="_blank">the agency</a> publicly con
MITRE ATT&CK techniques
- CredentialsT1589.001
Indicators of compromise
- https://www.atf.gov/news/press-releases/atf-responds-to-cybersecurity-incidenturl
- https://www.securitymagazine.com/articles/102207-breach-of-fbi-surveillance-system-considered-a-major-incident-security-experts-weigh-inurl
Same event, other sources
- ATF confirms “major incident” after recent Qilin breach claimsbleepingcomputer · 2026-08-27