The Cybersecurity and Infrastructure Security Agency (CISA) said Monday that there is “no indication” other federal agencies were impacted by the recent breach at the Treasury Department.

Hackers connected to China's government successfully breached several Treasury Department workstations and accessed unclassified documents, according to a letter to Congress on Monday. Why it matters: The U.

In a letter sent Monday and shared first with Semafor, Rep. Raja Krishnamoorthi, D-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.

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

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.