Threat Hunting
The latest Threat Hunting coverage — news, analysis, and updates from the WindowsNews.AI desk.
Symantec Uncovers Mistic Backdoor Used in Pre-Ransomware Intrusions by KongTuke
On June 24, 2026, Broadcom’s Symantec threat hunters publicly disclosed a new Windows backdoor named Mistic that has been actively used since at least April 2026 in targeted intrusions tied to the...
Graph Activity Logs, Entra ID & Exchange Audits Uncover Silent AI Agent Data Theft
A new surge in malicious delegated OAuth access is hitting Microsoft 365 tenants as assistive AI agents become commonplace. Security teams are now correlating logs from Entra ID, Exchange Online, and...
NCSC Warns: China-Nexus Hackers Now Weaponize Routers and Firewalls in Covert Botnets
The New Normal: Compromised Edge Devices as Covert Infrastructure For years, cybersecurity professionals have focused on protecting endpoints—servers, workstations, and mobile devices. But a new...
Sysmon Becomes Inbox Feature in Windows 11 Insider Builds: Microsoft's Security Shift
Microsoft has quietly integrated Sysmon, the powerful system monitoring tool from its Sysinternals suite, as an optional inbox feature in recent Windows 11 Insider builds. This marks a significant...
CISA KEV Update: Four Critical CVEs Demand Immediate Patching for ConfigMgr, Notepad++, SolarWinds, Apple dyld
The Cybersecurity and Infrastructure Security Agency (CISA) has escalated its Known Exploited Vulnerabilities (KEV) Catalog with four critical additions, signaling active exploitation in the wild and...
CVE-2026-21239: How Microsoft's New Confidence Signal is Transforming Windows Patch Management
Microsoft's introduction of a "confidence" indicator alongside CVE-2026-21239 represents a fundamental shift in how the company communicates vulnerability severity and drives enterprise security...
AI Memory Poisoning Threat: How Prefilled Prompts Manipulate Windows Copilot & Your Data
Microsoft's security researchers have uncovered a disturbing new attack vector targeting AI assistants like Windows Copilot, where malicious actors are weaponizing the very convenience features...
Microsoft Technical Takeoff 2026: Windows Management & Cloud Innovations for IT Pros
Microsoft's Technical Takeoff conference returns in March 2026 with a specialized engineering-led program designed specifically for IT professionals managing Windows environments,...
Sysinternals toolkit exposes threats Task Manager misses
When something on a Windows PC feels off—a persistent CPU spike, a process that keeps reappearing after removal, or a program quietly making outbound connections—Task Manager often leaves you...
Critical SharePoint Patch (CVE-2026-20958) Released: Every Admin Must Apply It Immediately
Microsoft has published a critical security update for on-premises SharePoint servers to fix an information disclosure vulnerability tracked as CVE-2026-20958, urging administrators to patch...
SharePoint Servers at Risk: Patch Now for CVE-2026-20963 to Block RCE Attacks
Microsoft has published a new critical remote code execution vulnerability—CVE-2026-20963—affecting on-premises SharePoint Server, with the vendor urging immediate patching and cryptographic key...
Microsoft Fixes SharePoint Spoofing Vulnerability That Attackers Can Chain to Gain Control of On-Prem Servers
Microsoft has released security updates to close a spoofing vulnerability in SharePoint Server that, if left unpatched, could let attackers impersonate trusted server interfaces and ultimately seize...