CISA: VMware ESXi flaw now exploited in ransomware attacks

Published on February 4, 2026

CISA confirmed on Wednesday that ransomware gangs have begun exploiting a high-severity VMware ESXi sandbox escape vulnerability that was previously used in zero-day attacks. [...]

Continue reading on website
Other news

DEAD#VAX Malware Campaign Deploys AsyncRAT via IPFS-Hosted VHD Phishing Files

February 4, 2026
Threat hunters have disclosed details of a new, stealthy malware campaign dubbed DEAD#VAX that employs a mix of "disciplined tradecraft and clever abuse of legitimate system features" to bypass traditional detection mechanisms and deploy a remote access trojan (RAT) known as AsyncRAT."The attack leverages IPFS-hosted VHD files, extreme script obfuscation, runtime decryption, and in-memory

Microsoft Develops Scanner to Detect Backdoors in Open-Weight Large Language Models

February 4, 2026
Microsoft on Wednesday said it built a lightweight scanner that it said can detect backdoors in open-weight large language models (LLMs) and improve the overall trust in artificial intelligence (AI) systems.The tech giant's AI Security team said the scanner leverages three observable signals that can be used to reliably flag the presence of backdoors while maintaining a low false positive