T-MOBILE HACKED IN MASSIVE CHINESE BREACH OF TELECOM NETWORKS

Summary from the TLDR newsletter

A Chinese cyber-espionage operation successfully gained entry into multiple US and international telecommunications companies, including T-Mobile. The months-long operation aimed to spy on the cellphone communications of high-value intelligence targets. Attackers were able to access cellphone lines used by senior national security and policy officials across the US government, stealing call logs, unencrypted texts, and some audio from targets. The hackers were able to access information from systems maintained by the carriers to comply with US surveillance requests.