T-Mobile USA announced a security breach late last night. The company says its cyber-security team discovered and shut down unauthorized access to its customers' data on Monday, August 20.
The telco says an attacker was exfiltrating personal data such as customer names, billing ZIP codes, phone numbers, email addresses, account numbers, and account types (prepaid or postpaid).
T-Mobile said the hacker (or hackers) did not gain access to passwords, social security numbers, or any financial information.
Impacted customers will receive an SMS, letter in the mail, or a phone call to notify them. The US telco says it informed law enforcement authorities about the breach.
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