Microsoft issues emergency Windows 11 update KB5086672 to fix broken March preview (KB5079391)

Microsoft issues emergency Windows 11 update KB5086672 to fix broken March preview (KB5079391)

Microsoft has released an out-of-band (OOB) emergency update—KB5086672—to address installation problems introduced by the March 2026 non-security preview update (KB5079391). The optional cumulative preview, which shipped for Windows 11 versions 24H2 and 25H2, was pulled after users began reporting installation failures with the error code 0x80073712. KB5086672 was published on March 31, 2026 as a replacement that both restores the

Hackers Weaponize Legitimate Windows Tools to Kill Antivirus — What Defenders Must Do Now

Hackers Weaponize Legitimate Windows Tools to Kill Antivirus — What Defenders Must Do Now

Ransomware gangs have evolved from noisy mass campaigns into precise, surgical operators. A growing and dangerous trend is the abuse of legitimate Windows utilities — tools built to help administrators troubleshoot and repair systems — as the first step in modern ransomware operations. By repurposing utilities such as Process Hacker, IOBit Unlocker, PowerRun, AuKill and TDSSKiller, attackers can silently neutralize

Inside the Claude Code Leak: What Anthropic’s Accidental Release Reveals

Inside the Claude Code Leak: What Anthropic’s Accidental Release Reveals

Anthropic, the AI company behind the Claude family of agents, suffered an unexpected exposure that rippled across the developer community and the wider AI market. Earlier today, a sizable JavaScript source map file—bundled with a public npm release—made internal implementation details of Claude Code visible to anyone who downloaded it. What began as a packaging mistake quickly became a public

Notepad++ v8.9.3 Released — cURL Fixes, Crash Repairs, and Enterprise Controls

Notepad++ v8.9.3 Released — cURL Fixes, Crash Repairs, and Enterprise Controls

Notepad++ has shipped version 8.9.3, a maintenance-focused release that closes a notable security gap in its updater, resolves several long-standing stability regressions, and finishes a multi-release migration to a faster XML parser. For administrators and power users who depend on the editor for daily development work, this update is worth prompt attention: it contains both a security remediation and a

Prevent Accidental Exposure of Non-Production Power Pages Sites — New Admin Governance Controls (Microsoft Power Platform)

Prevent Accidental Exposure of Non-Production Power Pages Sites — New Admin Governance Controls (Microsoft Power Platform)

When teams build or test Power Pages sites in trial or developer environments, there’s a risk those unfinished or sensitive sites could be made public by mistake. Microsoft has added a simple governance control in the Power Platform admin center (PPAC) that helps tenant admins prevent non-production sites from being switched to public—giving organizations an easy guardrail while leaving production