Clop

Clop is a notorious Russian-speaking cybercriminal group known for conducting ransomware attacks and data breaches since at least 2019. The group has been responsible for major cyberattacks worldwide, including against federal agencies in the United States, and is infamous for demanding ransoms for the release of stolen data. Clop's operations have drawn significant attention from cybersecurity experts and law enforcement agencies like the FBI, particularly due to their sophisticated methods of exploiting vulnerabilities in various systems.