Cyber Briefing: 2026.03.30

A wave of global cyber incidents highlights escalating threats—from nation-state campaigns and ransomware attacks to major breaches, exploit warnings, and regulatory crackdowns impacting governments, This article has been indexed from CyberMaterial Read the original article: Cyber Briefing: 2026.03.30

CrySome RAT: Stealthy .NET Malware Adds AV Killer, HVNC Features

CrySome RAT is a newly observed, advanced .NET remote access trojan that combines full‑featured post‑exploitation tooling with unusually hardened persistence, AV-killing, and anti‑removal logic, making it a serious long‑term threat to Windows environments. The client component (Crysome.Client.exe) communicates with a…

When AI Trust Breaks: The ChatGPT Data Leakage Flaw That Redefined AI Vendor Security Trust

AI assistants like ChatGPT have quickly become trusted environments for handling some of the most sensitive data people own. Users discuss medical symptoms, upload financial records, analyze contracts, and paste internal documents—often assuming that what they share remains safely contained within the platform.  That assumption was challenged when…