After months of news reports that Chinese threat actors have breached the networks of US telecommunications and internet service providers, the FBI and the Cybersecurity and Infrastructure Security Agency (CISA) have confirmed the success of the attacks, which were part of a “broad and significant cyber espionage campaign.” “Specifically, we have identified that PRC-affiliated actors have compromised networks at multiple telecommunications companies to enable the theft of customer call records data, the compromise of private communications of a limited number of individuals who are primarily involved in government or political activity, and the copying of certain information that was subject to U.S. law enforcement requests pursuant to court orders,” their official statement reads.

Source: Help Net Security