T-Mobile Data Breach Exposed Phone Numbers, Call Records

T-Mobile has announced a data breach exposing customers' proprietary network information (CPNI), including phone numbers and call records. From a report: Starting this week, T-Mobile began texting customers that a "security incident" exposed their account's information. According to T-Mobile, its security team recently discovered "malicious, unauthorized access" to their systems. After bringing in a cybersecurity firm to perform an investigation, T-Mobile found that threat actors gained access to the telecommunications information generated by customers, known as CPNI. The information exposed in this breach includes phone numbers, call records, and the number of lines on an account.

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