Chinese Hackers Breach U.S. Treasury, Accessing Sanctions and Intelligence Files

Chinese state-sponsored hackers infiltrated computers belonging to U.S. Treasury Secretary Janet Yellen and her deputies, accessing unclassified files as part of a broader breach. The hackers reportedly targeted the Treasury’s role in sanctions, intelligence, and international affairs without compromising classified systems. Investigators attributed the breach to the Chinese state-linked Silk Typhoon, which accessed over 3,000 files and law enforcement-sensitive data. Treasury was alerted on December 8th by software contractor BeyondTrust Corp., prompting a response involving the FBI and Cybersecurity and Infrastructure Security Agency. China denies allegations of state-sponsored hacking.