New Microsoft Defender “RedSun” zero-day PoC grants SYSTEM privileges

Published on April 16, 2026

A researcher known as "Chaotic Eclipse" has published a proof-of-concept exploit for a second Microsoft Defender zero-day, dubbed "RedSun," in the past two weeks, protesting how the company works with cybersecurity researchers. [...]

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Newly Discovered PowMix Botnet Hits Czech Workers Using Randomized C2 Traffic

April 16, 2026
Cybersecurity researchers have warned of an active malicious campaign that's targeting the workforce in the Czech Republic with a previously undocumented botnet dubbed PowMix since at least December 2025."PowMix employs randomized command-and-control (C2) beaconing intervals, rather than persistent connection to the C2 server, to evade the network signature detections," Cisco Talos

ZionSiphon malware designed to sabotage water treatment systems

April 16, 2026
A new malware called ZionSiphon, specifically designed for operational technology, is targeting water treatment and desalination environments to sabotage their operations. [...]