CNN — (CNN) — A growing number of businesses, universities and government agencies have been targeted in a global cyberattack by Russian cybercriminals and are now working to understand how much data ...

A ransomware gang exploited the critical React2Shell vulnerability (CVE-2025-55182) to gain initial access to corporate networks and deployed the file-encrypting malware less than a minute later.

The pro-Russia hacktivist group CyberVolk launched a ransomware-as-a-service (RaaS) called VolkLocker that suffered from serious implementation flaws, allowing victims to potentially decrypt files for ...

Hypervisors are the backbone of modern virtualized environments, but when compromised, they can become a force multiplier for attackers. A single breach at this layer can put dozens or even hundreds ...

A Ukrainian national pleaded guilty on Friday to conducting Nefilim ransomware attacks that targeted high-revenue businesses across the United States and other countries. The defendant, 35-year-old ...

Two former employees of cybersecurity incident response companies Sygnia and DigitalMint have pleaded guilty to targeting U.S. companies in BlackCat (ALPHV) ransomware attacks in 2023. 33-year-old ...