The EU, its members and the U.K. took action against Russian government officials and others while attributing the winter cyberattacks against Poland’s energy grid to the FSB.

State-sponsored attackers are targeting critical infrastructure networks in defense, communications, energy, finance, government and health care.

Karen Vardanyan faces up to 15 years in federal prison and agreed to pay nearly $1.2 million in restitution.

Authorities didn’t name the man or file formal charges, but accuse him of participating in attacks linked to Cyber Army of Russia Reborn and NoName.

The phone-cracking firm broke off from its deal with Russia, but Citizen Lab said that didn’t stop authorities from surveilling Andrey Pivovarov.

Microsoft, with law enforcement and industry partners, disrupted more than 200 command and control servers for Amadey and StealC, often used in conjunction.

Cybersecurity firms, researchers and officials took down 106 servers and remediated nearly 15,000 sites that were infected with the malware.

Denis Obrezko accused of orchestrating cyberattacks that compromised at least 11 U.S. companies as part of the Kremlin-linked group's sprawling espionage operation.\

Silent Ransom Group isn’t prolific, but it's demonstrated a knack for attacking the legal services sector with an extraordinary dual use of social engineering and in-person visits…

Anne Keast-Butler, head of the GCHQ, said her agency was developing an artificial intelligence-powered cyber shield as other nations were deploying AI in warfare.