In early December 2024, the U.S. Department of the Treasury experienced a cybersecurity breach. Though China denies involvement, the breach is attributed to a Chinese state-sponsored Advanced Persistent Threat (APT) actor.

A Chinese state-sponsored hacker broke into the US Treasury Department's systems and accessed some unclassified documents.

Late last month the US Treasury reported that an unspecified number of computers had been compromised by Chinese hackers following a data breach.

Ill., the top Democrat on the House select committee on China, raised concerns about the breach to Treasury Secretary Janet Yellen and asked for a meeting to discuss the situation by Jan. 15. A Treasury official told Semafor that the agency has already offered briefings to Congress.