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The addresses, phone numbers and dates of birth of at least 37 million customers were stolen from the databases of the operator T-Mobile via an unidentified malicious intruder who broke into their network in late November.
T-Mobile said in a filing with the Securities and Exchange Commission that the breach was discovered on January 5. He said that The data exposed to the theft, according to their investigation to date, did not include passwords or PINs, bank account or credit card information, Social Security numbers or other government identification.
T-Mobile said on Thursday that a hacker had collected data, including names, birth dates and phone numbers, from 37 million customer accounts, the company’s second major breach in less than two years. https://t.co/dVoJR0VcdJ
— The New York Times (@nytimes) January 20, 2023
“Our investigation is still ongoing, but the malicious activity appears to be fully contained at this time,” T-Mobile said, with no evidence that the intruder could breach the company’s network.
The company said it was able to discover the source of the information leak and fix it within 24 hours and estimates that the rest of its systems were not affected. The company later determined that the attack likely began around November 25.
Following the attack, it notified law enforcement and federal agencies, meanwhile it does not expect the incident to have a material impact on its operations.
The company had already been the victim of a major hack in 2021 that affected the data of 76.6 million residents of the United States, So last July, it agreed to pay $350 million to customers who filed a class action lawsuit after the company disclosed the theft of personal data, including Social Security numbers and driver’s license information.
It also said at the time that it would spend $150 million through 2023 to strengthen its data security and other technologies.
Bellevue, Washington-based T-Mobile became one of the nation’s largest cell phone carriers in 2020 after buying rival Sprint in 2020. It reported more than 102 million customers after the fusion.
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