T-Mobile suffered a security breach in December that exposed call-related information and phone numbers to some of its customers. First reported by Bleeping Computer, did the information affected by the offense not include the names on customers’ accounts, physical or email addresses, financial data, credit card information, social security numbers, tax IDs, passwords or PINs, the company said.
T-Mobile says in a statement by email to The edge that he had notified “less than 0.2 percent” of his customers – which employs about 200,000 people – that some account information had been illegally accessed. This information “may have included telephone numbers, number of lines subscribed to, and in a small number of cases, some call-related information collected as part of normal operation and service.” T-Mobile says that “this attack was identified in early December and the incident was quickly stopped.” Affected customers were notified by sms.
In a notice on its website, T-Mobile said its security team had “closed malicious, unauthorized access” and launched an investigation to determine what information was involved. The company reported the situation to federal law enforcement.
T-Mobile has been the victim of several data breaches in recent years; in 2018, hackers gained access to personal information for approximately 2 million customers containing names, addresses and account numbers. In 2019, some of the prepaid customers were affected by an offense that gained access to names, addresses and account numbers. And in March 2020, a breach exposed financial information, social security numbers and other account information of some T-Mobile customers.