The Biden administration on Friday made one final push to expose what officials say is a rampant Chinese cyber-espionage campaign by identifying a company and a person allegedly behind a pair of damaging hacks aimed at senior US officials.

As President-elect Donald Trump enters his second term Monday, he’s facing down an unprecedented foreign threat: Chinese hackers. In the last several years, three distinct Chinese hacking campaigns have occurred in the United States — even reportedly infiltrating U.

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.

The State and Treasury Departments say Chinese cybersecurity vendor Sichuan Juxinhe is behind the hacks into numerous US telecommunications companies.

The U.S. Treasury Department said Sichuan Juxinhe Network Technology Co. was directly involved in the deep compromises of the telecommunications firms.