Segiu Gatlan reports:
UScellular, self-described as the fourth-largest wireless carrier in the US, has disclosed a data breach after the company’s billing system was hacked in December 2021.
The mobile carrier said in data breach notification letters sent to 405 impacted individuals that the attackers also ported some of the affected customers’ numbers using personal information stolen in the incident.
Read more at BleepingComputer.