T-Mobile US 'monitoring' China's 'industry-wide attack' amid fresh security breach fears

U.S. authorities and reporting allege a broad, months-long Chinese government-linked APT campaign dubbed "Salt Typhoon" compromised multiple U.S. telecom providers (Verizon, AT&T, Lumen and potentially T‑Mobile), accessing edge-routing and wiretap-like systems to copy customer call records and private communications of select high-value individuals; the FBI and CISA have confirmed a significant cyber espionage campaign and carriers are coordinating with authorities while T‑Mobile says it contained an intrusion before major data loss.