The Department of Justice announced on Thursday that, in tandem with a civil action by Microsoft, it had authorized the seizure of 41 internet domains used by Russian intelligence agents to commit cybercrime in the United States.

A news release published by the DOJ revealed that it had worked in collaboration with Microsoft to expose a "spear-phishing campaign" by Russian state-sponsored threat actors affiliated with the "Callisto Group," an operational unit in Center 18 of the Russian Federal Security Service. "Spear-phishing" refers to the act of sending targets counterfeit emails to induce them to share personal or sensitive information.