Att Data Breach 2024 What To Do. If you're one of at&t's cellular customers, you can check your account to see if your data was compromised as part of the massive breach the telecom giant. For starters, if you did receive a data breach notification, you should probably reach out to your bank or credit card provider about getting a replacement card.

At&t’s data breach, which exposed nearly all of its cellular customers’ call and text message records. At&t has confirmed a data breach affecting 73 million customers.