T-Mobile is investigating a data breach after a hacker claimed to have stolen information from 100 million of the company’s customers.
On Monday, T-Mobile told customers that it is coordinating with law enforcement and is conducting an analysis with digital forensic experts to examine the validity of the hacker’s claims.
“We have determined that unauthorized access to some T-Mobile data occurred, however we have not yet determined that there is any personal customer data involved. We are confident that the entry point used to gain access has been closed, and we are continuing our deep technical review of the situation across our systems to identify the nature of any data that was illegally accessed,” T-Mobile said in a statement.