Black Suit Ransomware Group Taken Down by International Law Enforcement in Operation Checkmate
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The U.S. National Nuclear Security Administration (NNSA), a division of the Department of Energy tasked with maintaining and safeguarding the nation’s nuclear arsenal, has found itself at the center of one of the most...
The post US Nuclear Agency Hit by SharePoint Zero-Day: Over 400 Orgs Breached as Ransomware Threat Escalates appeared first on Penetration Testing Tools.
A sophisticated espionage campaign dubbed “Fire Ant” demonstrates previously unknown capabilities in compromising VMware virtualization infrastructure. Since early 2025, this threat actor has systematically targeted VMware ESXi hosts, vCenter servers, and network appliances using hypervisor-level techniques that evade traditional endpoint security solutions. The campaign exhibits strong technical overlap with the previously identified UNC3886 threat group, […]
The post Fire Ant Hackers Exploiting Vulnerabilities in VMware ESXi and vCenter to Infiltrate Organizations appeared first on Cyber Security News.
On July 22, 2025, Mozilla unveiled the Firefox 141 update, a release focused on enhancing browser security. According to security bulletin MFSA 2025-56, the update addresses 18 vulnerabilities, including flaws in the JavaScript engine,...
The post Firefox 141 Released with Patches for 18 Vulnerabilities, Including High-Severity RCE Flaws appeared first on Penetration Testing Tools.