ATF probes major ransomware incident claimed by Qilin
By The BriefBrief
The ATF is investigating a cybersecurity incident designated a “major incident” by Justice Department officials as the Qilin ransomware group claims credit for the attack.
WHO:ATF; Justice Department officials; Qilin ransomware group
WHAT:ATF investigates a cybersecurity incident described as a “major incident” after Qilin ransomware claims credit.
WHEN:Reported Aug 26, 2026 at 9:26 PM ET
WHERE:Location not specified
WHY:Cause not yet established.
Reporting from 2 identified publishers across this event arc.
