LightBasin Hackers Breach at Least 13 Telecom Service Providers Since 2019

A highly sophisticated adversary named LightBasin has been identified as behind a string of attacks targeting the telecom sector with the goal of collecting “highly specific information” from mobile communication infrastructure, such as subscriber information and call metadata. 
“The nature of the data targeted by the actor aligns with information likely to be of significant interest to signals

Source:: The Hackers News