The US Treasury Department announced in a letter back in December that it had been the victim of a security breach, attributing it to a “China state-sponsored Advanced Persistent Threat actor.” Now we know more about the extent of the hack,

State-sponsored Chinese hackers reportedly gained access to US Secretary of the Treasury Janet Yellen's computer, first reported by Bloomberg, in a major cybersecurity breach that occurred this past December.

Fewer than 50 files on Yellen’s machine were accessed by attackers, who failed to penetrate the department’s email or classified systems.

Chinese hackers breached US Treasury systems, accessing files on Secretary Janet Yellen and other senior officials computers, Bloomberg News Reports

In the latest instance of a high-profile cybersecurity breach, Chinese state-sponsored hackers accessed hundreds of US Department of Treasury’s systems, including the devices of Treasury Secretary Janet Yellen,

U.S. Treasury Secretary Janet Yellen's computer hacked by Chinese state-sponsored hackers, accessing unclassified files, Bloomberg reports.

US Treasury Secretary Janet Yellen’s computer was infiltrated and unclassified files were accessed as part of a broader breach of the agency by Chinese state-sponsored hackers, according to two people familiar with the matter.

US Treasury breach - US Secretary of Treasury Computer Hacked: U.S. Treasury Secretary Janet Yellen's computer was hacked, along with the computers of two of her deputies, as part of a broader cyberattack by Chinese state-sponsored hackers.

The Biden administration on Friday announced sanctions on two Chinese entities accused of cyberattacks, including a firm it said is directly involved in the recent espionage campaign against US telecommunications firms and a hacker behind the recent breach of Treasury Department computers.

The Treasury Department has announced sanctions in connection with a massive Chinese hack of American telecommunications companies and a breach of its own computer network