Hackers breached T-Mobile US servers and reportedly obtained the personal data of more than 100 million customers, according to a Vice report.

T-Mobile confirms "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."

The alleged massive data breach includes a wide swath of personal information, including names, phone numbers, social security numbers, physical addresses, unique device identifier data, and drivers license information, according to Vice.

"We take the protection of our customers very seriously and we are conducting an extensive analysis alongside digital forensic experts to understand the validity of these claims, and we are coordinating with law enforcement," T-Mobile said in a statement.

The data was reportedly obtained from multiple T-Mobile’s servers, and the hackers claim the operator is likely aware of the breach because it lost backdoor access to the servers. The hackers told Vice that the data was already downloaded locally and claim it’s backed up in multiple locations.

Vice also reported, after viewing samples of the data, that the information contains accurate information on T-Mobile customers.  

T-Mobile warned that its investigation is ongoing, but added "we are working with the highest degree of urgency. Until we have completed this assessment we cannot confirm the reported number of records affected or the validity of statements made by others."

The operator said it will share its findings with customers and other stakeholders.

The hackers are attempting to sell about 30 million social numbers and driver’s licenses for six bitcoin on the online forum, and claim the remainder of the data is being sold to private parties.