T-Mobile said the stolen data is unlikely to have been used by hackers yet, but counseled account holders and workers to review their information and change their passwords immediately.
US telecoms company T-Mobile has reported a cyberattack, which endangered personally identifiable information about many of its workers and customers.
The company said its cybersecurity staff seen and shut down an assault against its email vendor, which caused the vulnerability of information including names, addresses, telephone numbers, account numbers, rate plans, features and billing information.
Personally identifiable information of this type could be used by hackers to run phishing efforts, to impersonate a victim and, in extreme cases, steal their tax refunds.
“T-Mobile is in the process of notifying customers. It’s likely you did not hear from us because we don’t have up-to-date contact information for you,” the company explained.
The telecoms giant has notified federal law enforcement agencies and is”actively” cooperating with researchers.
According to Android Central, the episode did not compromise financial information like credit card data or Social Security numbers.