T-Mobile confirmed on Monday that there had been an intrusion into its computer system, but is not yet sure if any personal data was stolen, after hackers claim to have put up for sale the confidential data of 100 million customers of the American operator.
“Unauthorized access to T-Mobile data has occurred, but we have not yet determined whether personal user data is affected,” said a spokesperson for the group.
“The access point has been closed, and we are continuing our in-depth technical investigation of the situation, on all of our systems, to identify the nature of the data that was found illegally,” he added.
According to the assertions of a group of hackers, the attack would have made it possible to collect confidential data, in particular tax identification numbers or driving licenses, of tens of millions of people, and to market them on the “dark web “, the hidden part of the internet.
According to screenshots published by the computer security site Bleeping Computer, the personal information of at least 30 million people has been offered for sale on forums for the equivalent of 280,000 bitcoin (or about 13 billion of dollars).
The hack was first reported by the news site Motherboard (Vice), which cited a seller claiming to have “all consumer information” of T-Mobile customers.
“The investigation will take time but we are working in the greatest urgency. As long as it is not finished, we will not be able to confirm the number of affected data or the veracity of statements coming from other entities”, specified T-Mobile.
Data theft and ransomware attacks have escalated in recent months, targeting various companies and organizations, including a US pipeline operator, the Irish health services IT system and a major Indian airline.
Facebook, Yahoo and Marriott have suffered theft of personal information concerning more than 100 million of their users or customers in recent years.
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