T-Mobile is about to eliminate a major vulnerability from its network

Credit: Joe Maring / Android Authority TL;DR T-Mobile will officially shut down its legacy 2G GSM network on August 3, 2026, marking the end of the 2G era for major US carriers. The ancient 2G standard lacks modern encryption, leaving legacy devices highly vulnerable to spoofing and call interception via rogue cell towers. Consumer impact will be minimal, as T-Mobile kept the network alive longer than AT&T and Verizon primarily to give international roamers and legacy IoT devices time to transit