Data from about more than 40 million records of former or prospective customers and about 850,000 prepaid customers were stolen, T-Mobile said
On Wednesday, T-Mobile US Inc. said about an on-going investigation into a cyber-attack on its systems revealed that some personal data of about 7.8 million of its current post-paid customers were compromised.
The company was made aware of the attack late last week, it said in a statement, after an online forum claimed that personal information of its users were leaked.
Data from about more than 40 million records of former or prospective customers and about 850,000 prepaid customers were stolen, T-Mobile said.
There was no indication of their financial details being compromised, but the breached information included customers’ first and last names, date of birth, social security numbers, and driver’s license information, it said.
The telecom operator had acknowledged the breach on Monday and said that it was confident the entry point used to access the data had been closed.
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