"If you're an AT&T customer, now's the time to take action. A previously reported data breach has exposed personal information from millions of accounts—and that data is reportedly up for sale on ...

To check if your information was leaked in that breach, you can check through Pentester, a cybersecurity firm, by going to ...

just a month after another AT&T breach in which customer social security numbers were among the pieces of personal information stolen. Analysts who spoke with NBC News fear that thieves can ...