US firearms regulator acknowledges system compromise linked to ransomware group

The Bureau of Alcohol, Tobacco, Firearms and Explosives confirmed that one of its standalone systems was breached, describing it as a major incident. The agency stated the affected system is separate from its main network and that it has terminated connections while coordinating with the Department of Justice. The Qilin ransomware gang had added the ATF to its dark web leak site earlier the same day.