T-Mobile (TMUS) disclosed a data breach on Monday, but refused to specify whether any personal information from consumers was stolen or how broad the damage might be.
The company’s admission of a breach came after hackers told Vice that they were selling “complete customer information” taken from T-Mobile servers, which pertained to over 100 million customers, according to the hackers.
The corporation claimed late Sunday that it was “aware of assertions made in an underground forum” and that it was “currently investigating their legitimacy.”
On Monday, the business announced that it has patched a vulnerability that hackers had exploited to gain access to T-networks, Mobile’s and that it is investigating the breach with the “highest degree of urgency.”
“We’ve been working around the clock to investigate reports that T-Mobile data was illegally accessed,” the firm said in a statement, adding that it is cooperating with law enforcement.
“We’ve discovered that illegal access to some T-Mobile data occurred, but we haven’t determined whether any personal customer data was compromised.”
“We cannot confirm the reported number of records affected or the validity of statements made by others until we have finished this assessment,” the statement continued. T-Mobile promised to keep consumers and other stakeholders up to date as the inquiry progressed.
Following news of the data leak, the company’s stock dropped 3% on Monday.
