Plaintiff lawyers behind a $350 million settlement with T-Mobile plan to ask for as much as $105 million in attorney fees, which, if approved, would be the largest compensation request so far in a data-breach class action.

The settlement, reached Friday, provides a $350 million settlement fund for class members impacted by the breach, announced on Aug. 16, 2021. T-Mobile also would spend an additional $150 million in data security improvements in 2022 and 2023.