T-Mobile Says Data of 37 Million Customers Exposed in Second Data Breach in 2 Years

T-Mobile on Thursday said that it was probing a data breach, the second major cyberattack in two years, that may have exposed 37 million postpaid and prepaid accounts. The US telecom operator said it identified malicious activity on January 5 and contained it within a day, adding that basic customer data — such as name, billing address, email and phone number — wa...