The company said in a filing with the U.S. Securities and Exchange Commission it learned in April that customer data was illegally downloaded from an AT&T workspace on a third-party cloud platform ...

Many AT&T customers were left without cellphone service Thursday thanks to a widespread outage that began in the early morning and lasted until roughly 3 p.m. ET, when the company confirmed it had ...

AT&T says they have "restored wireless service to all our affected customers." A temporary network disruption that affected AT&T customers in the U.S. Thursday was caused by a software update, the ...

Around 37 million T-Mobile customers recently had their personal information compromised in the company’s second major hack in less than two years, the company said Thursday, adding hackers were ...

The company went through extensive cybersecurity measures after a previous hack. T-Mobile says they discovered a "bad actor" was taking information through a single application, according to an ...

Less than four years after the merger, AT&T abandoned its grand initiative. It spun off its Warner Media assets and ceded management control to Discovery. The new company, Warner Bros. Discovery ...