Latest T-Mobile Breach Impacting 37 Million Customers Prompts FCC Probe
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In the second major security incident at the company in three years, T-Mobile, the third largest mobile phone company in the U.S., said in an SEC filing it is investigating a data breach involving 37 million postpaid and prepaid accounts, adding that it could incur significant costs related to the incident.
The carrier said it identified malicious activity on January 5 and contained it within a day, claiming that no sensitive data, such as financial information, was compromised. However, basic customer data such as name, billing address, email, and phone number were exposed in the breach.
The Federal Communications Commission immediately said it had opened an investigation. “This incident is the latest in a string of data breaches at the company, and the FCC is investigating,” an FCC spokeswoman said.
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