The Treasury Department announced sanctions Friday in connection with a massive Chinese hack of American telecommunications companies and a breach of its own computer network. The sanctions target a Chinese hacker who officials say is affiliated with Beijing's Ministry of State Security and who was involved in a cyber-intrusion

The U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC) has sanctioned Yin Kecheng, a Shanghai-based hacker for his role in the recent Treasury breach and a company associated with the Salt Typhoon threat group.

A Chinese hack compromised even more U.S. telecoms than previously known, including Charter Communications , Consolidated Communications (CCII.UL) and Windstream, the Wall Street Journal reported late on Saturday,

The Treasury Department imposes sanctions following a significant Chinese cyberattack on US telecom firms and its own network breach.

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.

WASHINGTON (Reuters) - The U.S. Treasury Department on Friday imposed sanctions on alleged hacker Yin Kecheng and cybersecurity company Sichuan Juxinhe Network Technology Co., accusing both of being involved in a series of hacks against American telecom companies.