The U.S. government’s ongoing probe into China-backed actors’ attempts to hack into U.S. telecommunications infrastructure revealed a “broad and significant” espionage

China-affiliated hackers have compromised US officials’ data through a large-scale hack on telecommunications providers, according to the US government. The FBI and the US Cybersecurity and Infrastructure Security Agency (CISA) published a joint advisory on November 13 in which they shared more details on what they called “a broad and significant cyber espionage campaign.

Federal authorities say an investigation into Chinese government hacking efforts has revealed a “broad and significant” cyberespionage campaign mounted by Beijing.