GoKawiilATF, the regulatory agency that enforces federal laws governing firearms and explosives in the United States, has confirmed that one of its systems was compromised after breach claims made by the Qilin ransomware gang.
This follows Qilin adding the U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives to its dark web data leak portal on Wednesday, without saying whether it had stolen files from ATF's systems or demanded a ransom.
The same day, the ATF published a press release saying that a standalone system was breached in what it described as a "major incident," which is now being investigated in collaboration with the Department of Justice.
"The impacted system operates separately from the ATF enterprise network, and there is no indication that the incident has affected the ATF enterprise network, the ATF eForms system, or any other ATF system," the federal law enforcement agency said.
"Upon discovery of the incident, ATF immediately terminated connections to the affected environment and initiated incident‑response and forensic activities. ATF is coordinating closely with the Department of Justice to investigate."
ATF added that the incident did not affect the agency's operations and asked the public to share any information on the attack via its official tipline.
BleepingComputer reached out to an ATF spokesperson with further questions about the incident, but a response was not immediately available.
ATF entry on Qilin leak site (BleepingComputer)
Qilin is a Ransomware-as-a-Service (RaaS) operation first spotted in August 2022 under the "Agenda" name that has since claimed responsibility for more than 2,200 victims on its dark web leak site.
The list of victims includes many high-profile organizations such as automotive giants Nissan and Yangfeng, pathology services provider Synnovis, Japanese beer giant Asahi, publishing giant Lee Enterprises, and Australia's Court Services Victoria.
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