AT&T sues to block T-Mobile's switching app

AT&T is asking a federal court to shut down T-Mobile’s Easy Switch app, arguing it illegally taps into AT&T systems to pull customer data. In its complaint, AT&T says the app uses automated tools to scrape details such as account information without proper authorization, framing it as a security and privacy risk rather than just a competitive tactic.

T-Mobile pitches Easy Switch as a way to simplify changing carriers, but AT&T claims the tool crosses legal lines governing access to computer networks. A hearing on AT&T’s request for an injunction is set for December 16, when a judge will weigh whether T-Mobile must disable or change the app while the case proceeds.