The Biden administration is hunting for malicious computer code it believes China has hidden deep inside the networks controlling power grids, communications systems and water supplies that feed military bases in the United States and around the world, according to American military, intelligence and national security officials.
The discovery of the malware has raised fears that Chinese hackers, probably working for the People’s Liberation Army, have inserted code designed to disrupt U.S. military operations in the event of a conflict, including if Beijing moves against Taiwan in coming years.