CISA's official publications or press releases

T-Mobile Confirms Breach by Chinese Hackers, Still Embedded in U.S. Telecom Networks

Dec 3, 2024, 06:30 PM

T-Mobile, the second-largest wireless carrier in the U.S., has confirmed a cyberattack by the China-linked hacking group Salt Typhoon. The U.S. government, through the FBI and the Cybersecurity and Infrastructure Security Agency (CISA), has acknowledged that Chinese hackers remain embedded in U.S. telecom networks following a significant cyber espionage campaign. This campaign has enabled the hackers to access records and listen to voice calls. Despite efforts by the government, telecom companies are still struggling to evict these hackers from their networks. The FBI and CISA have issued guidance to mitigate such attacks, emphasizing basic cybersecurity practices like monitoring assets, managing device configurations, limiting access, segmenting networks, and encrypting traffic.