data breach

A third-party vendor hack exposed millions of AT&T customers' account information, including names, phone numbers, and email addresses.

While a hacking group insists it exposed TikTok's source code, the company claims otherwise.

Samsung's U.S. data servers were hacked in late July, but Samsung didn't inform affected customers until September.

The carrier will pay $350 million to notify and compensate those affected, plus it must spend $150 million beefing up its security.