Microsoft Confirms RoguePlanet Defender Zero-Day, Says Patch is in Development

Microsoft has formally disclosed that it’s working to release a patch to address a Defender zero-day codenamed RoguePlanet. The vulnerability has now been assigned the CVE identifier CVE-2026-50656 (CVSS score: 7.8), with the tech giant describing it as a privilege escalation flaw. “Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection…

Junior Hacker Used Tailscale and OpenSSH to Keep Access After His C2 Went Offline

A French-speaking attacker broke into a small French automotive business, planted a keylogger, and stole banking and email credentials. Ordinary stuff, until one move near the end. Before his command-and-control server went dark, he installed OpenSSH and Tailscale on a victim’s machine, building a way back in that did not run through the C2 at…

Adversarial Exposure Validation Turns Security Visibility into Confident Prioritization

For security teams, the findings never stop, but confidence in knowing which ones matter is becoming harder to maintain. The problem is no longer visibility. It’s validation. Security teams must decide which findings warrant action while operating under constant pressure and incomplete information. Increasingly, the challenge is not discovering potential risks. It is determining which…

Malicious JetBrains Plugins Steal AI API Keys as Chrome Extensions Capture Chatbot Chats

Cybersecurity researchers have flagged a “coordinated malware campaign” on the JetBrains Marketplace that has published no less than 15 malicious plugins capable of exfiltrating artificial intelligence (AI) provider keys. “Every plugin poses as an AI coding assistant built on DeepSeek and other large language models, offering chat, commit messages, code review, bug finding, and unit…

144 Mastra npm Packages Compromised via Hijacked Contributor Account

As many as 144 npm packages associated with the Mastra namespace (“@mastra/*”), a popular open-source JavaScript and TypeScript framework for building artificial intelligence (AI) applications, have been compromised as part of a software supply chain attack codenamed easy-day-js, per findings from JFrog, SafeDep, Socket, and StepSecurity. “A single npm account (ehindero) mass-published more

CISA Warns of Actively Exploited Joomla JCE Flaw Allowing PHP Code Execution

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added a maximum-severity security flaw impacting Widget Factory Joomla Content Editor (JCE) to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. The vulnerability, tracked as CVE-2026-48907 (CVSS score: 10.0), is a case of improper access control that could facilitate arbitrary

npm Supply Chain Cryptocurrency Malware

What is the Attack? Researchers have identified a large-scale software supply chain campaign targeting the npm ecosystem, leveraging malicious JavaScript packages to distribute a multi-stage cryptocurrency-focused malware framework. The campaign affected numerous npm packages that collectively accumulated more than 2.7 million downloads, significantly increasing the potential victim pool among developers, software organizations, and CI/CD environments….