Browsing Tag
Endpoint Security
4 posts
Endpoint protection, EDR, antivirus, Windows security controls, device hardening, and practical endpoint defense guidance.
ACR Stealer Turns ClickFix Lures Into Browser-Token Theft
Microsoft says ACR Stealer activity rose across customer environments from late April to mid-June, with campaigns using ClickFix lures, WebDAV, MSHTA, obfuscated PowerShell, and even JPEG-hidden payloads. Security teams should treat infections as token and document-exposure events, not just password resets.
Zoom’s Windows Account-Takeover Bug Makes Client Updates an Admin Priority
Zoom has patched CVE-2026-53412, a critical Windows client flaw that could let an unauthenticated attacker take over accounts over the network. The practical response is to verify Zoom Workplace and VDI client versions, not just assume auto-update has reached every endpoint.
BlueHammer Ransomware Flag Puts Microsoft Defender Patching Back on the Clock
CISA has updated the Microsoft Defender BlueHammer flaw, CVE-2026-33825, to mark it as used in ransomware campaigns. The flaw was patched in April, but the new flag gives Windows teams a fresh reason to verify Defender updates, endpoint telemetry, and local privilege escalation controls.
Microsoft Defender RoguePlanet Zero-Day Leaves Windows Teams Waiting for a Patch
Microsoft has acknowledged RoguePlanet, a Microsoft Defender elevation-of-privilege flaw tracked as CVE-2026-50656, but a patch is still in development. The public proof of concept turns Defender’s own file-handling workflow into a path to SYSTEM privileges, so Windows teams should tighten execution controls and monitoring while they wait for Microsoft’s fix.