microsoft defender - Tech News from Simmons Systems

Tech News from Simmons Systems

microsoft defender

A collection of 3 posts

microsoft defender

Researcher Drops Microsoft Defender "ShieldCrash" Zero-Day Exploit After Patch Tuesday

An anonymous security researcher operating under the name Nightmare Eclipse has released a new zero-day exploit targeting Microsoft Defender, dubbed "ShieldCrash." The release comes immediately after Microsoft rolls out its September 2026 Patch Tuesday security updates, suggesting the exploit targets a vulnerability that remains unpatched in the latest

Invisible Unicode Characters Power Massive Finance Phishing Campaign

Threat actors are using a technique called ASCII smuggling to hide phishing lures from email security filters, according to Microsoft threat researchers. The attackers insert invisible Unicode characters from the Tags block (U+E0000–U+E007F) inside finance-related keywords, splitting words like "funding" into "fun[invisible character]

Microsoft Rushes Patch for RoguePlanet Defender Zero-Day Exploit

Microsoft releases a security update to patch a zero-day vulnerability in Microsoft Defender known as "RoguePlanet." The flaw, tracked as CVE-2026-50656, allows attackers to exploit a race condition in the antivirus software to gain SYSTEM-level privileges on fully patched Windows 10 and Windows 11 devices. The company addresses