The problem apparently occurred because of Google’s partnership withT-Mobile.
The mishap could be related to a majorT-Mobile breach affecting 37 million customersearlier in January.
It was theeighth time the telecom company had been hacked since 2018.
Google said none of its internal systems or systems it oversees was accessed.
Neither Google, USCellular nor T-Mobile immediately responded to requests for comment.
Google Fi doesn’t own its own cellular web connection infrastructure.
Instead, it partners with T-Mobile andUSCellular to provide service.
Google Fi isn’t directly related to Google’s mobile operating system, Android.
Google told Fi customers that their service isn’t affected by the data breach.