Two Sudanese men were charged by the Department of Justice with leading a hacking group that is responsible for launching tens of thousands of attacks against organizations such as hospitals and critical government infrastructure.

Ahmed Salah Yousif Omer, 22, and Alaa Salah Yusuuf Omer, 27, were charged with conspiracy to damage protected computers, while Ahmed Salah was charged with three counts of damaging protected computers, according to the DOJ.