US federal agency confirms data breach in wake of claims by ransomware group

By AJ Vicens

Aug 27 (Reuters) – A ransomware group gained access to a computer system containing information about targets of investigations by the Bureau of Alcohol, Tobacco, Firearms and ​Explosives, a spokesperson for the U.S. agency said after ‌a hacking group publicized a claimed breach on Wednesday.

Tanya Roman, a spokesperson for the agency, said in an email that the standalone system was not connected to any other ATF systems, including case management, laboratory or ‌eForms ​systems, which are used by the agency ⁠to manage form submissions ⁠from the public.

Roman said the affected system was “quickly shut down when the breach was discovered,” and that an investigation is ongoing. A separate statement posted to the agency’s website said the ​ATF is coordinating closely with the Department of Justice and that the episode has been designated a “major incident.”

Neither Roman nor ⁠the statement identified a possible culprit ⁠for the breach.

The breach raises concerns because ATF systems ​can contain sensitive law enforcement data, including details on ongoing investigations. ​The “major incident” designation means the breach could result in ‌harm to national security or civil liberties and triggers congressional reporting requirements.

The ATF is a federal law enforcement agency under the U.S. Department of Justice. A Department of Justice spokesperson referred Reuters ⁠to the statement by the ATF. The Cybersecurity and Infrastructure Security Agency also referred questions to the ATF.

Qilin, a prolific ransomware operation thought ⁠to be Russian-based ‌or Russian-speaking, posted a message on its ⁠website on Wednesday, in which it claimed responsibility ​for the ‌compromise. The message included no description of ​what was ⁠stolen or how much, and did not include any samples.

Qilin has listed nearly 2,400 claimed attacks across more than 100 countries since it emerged in October 2022, according to data compiled by cybercrime research and tracking platform eCrime.ch.

(Reporting by AJ Vicens in Detroit; Editing ​by Matthew Lewis)