The sanctions also follow the much more damaging revelation last year that a group linked to Chinese intelligence agencies and known as Salt Typhoon had hacked U.S. telecommunications networks, targeting the telephone conversations and text messages of an array of top political figures, including President-elect Donald J. Trump.
Like Salt Typhoon, Flax Typhoon is among a handful of groups that Microsoft has publicly identified as being linked to Chinese intelligence and responsible for a range of state-sponsored cyberattacks. The group has been active since 2021 and appears focused on targets in Taiwan and the United States, according to the Congressional Research Service.
“The Treasury Department will not hesitate to hold malicious cyberactors and their enablers accountable for their actions,” Bradley T. Smith, an acting under secretary of the Treasury, said in a statement. “The United States will use all available tools to disrupt these threats as we continue working collaboratively to harden public and private sector cyberdefenses.”
In September, the F.B.I. said it had taken down a network of 200,000 consumer devices in the United States and abroad that had been compromised with malware and weaponized by Flax Typhoon.
The sanctions announced on Friday generally prohibit financial institutions and individuals from transacting with Integrity Technology Group, and freeze any of its assets in the United States.
