Google’s cell network provider Google Fi has confirmed a data breach, likely related to the recent security incident at T-Mobile, which allowed hackers to steal millions of customers’ information.
In an email sent to customers on Monday, obtained by TechCrunch, Google said that the primary network provider for Google Fi recently informed the company that there had been suspicious activity relating to a third-party support system containing a “limited amount” of Google Fi customer data.
The timing of the notice — and the fact that Google Fi uses a combination of T-Mobile and U.S. Cellular for network connectivity — suggests the breach is linked to the most recent T-Mobile hack. This breach, disclosed on January 19, allowed intruders access to a trove of personal data belonging to 37 million customers, including billing addresses, dates of birth and T-Mobile account details. The incident marked the eighth time T-Mobile has been hacked since 2018.
In the case of Google Fi’s breach, Google says the hackers accessed limited customer information, including phone numbers, account status, SIM card serial numbers and information related to details about customers’ mobile service plans, such as whether they have selected unlimited SMS or international roaming.
Google said that the hackers did not take customers’ personal information or payment card data, passwords, PINs or the contents of text messages or calls.