CNN — The call and text message records of tens of millions of AT&T cellphone customers and many non-AT&T customers in mid-to-late 2022 were exposed in a massive data breach, the telecom company revealed Friday. AT&T said the hacked data did not include the content of calls and text messages. At this point, the exposed data is not believed to be publicly available. AT&T blamed an “illegal download” on a third-party cloud platform that it learned about in April – just as the company was grappling...