What is Salt Typhoon? A security expert explains the Chinese hackers and their attack on US telecommunications network

Richard Forno

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Cyberattacks linked to the Chinese government that compromised large portions of the American telecommunications network have the U.S. government sounding the alarm. The chair of the Senate Intelligence Committee, Sen. Mark Warner (D-VA), has called it the “worst telecom hack in our nation’s history” and noted that it makes prior cyberattacks by Russian operatives look like “child’s play” by comparison.

The complex cyberattack, carried out by a group of Chinese hackers dubbed Salt Typhoon, began as far back as 2022. Its purpose, according to U.S. officials, was to give Chinese operatives persistent access to telecommunications networks across the U.S. by compromising devices like routers and switches run by companies like AT&T, Verizon, Lumen and others.

This attack comes on the heels of reports that the FBI and Cybersecurity and Infrastructure Security Agency were assisting telephone companies with countering other China-connected compromises of their networks. The earlier hacking was part of an attack targeting people in the Washington area in government or political roles, including candidates for the 2024 presidential election.