it security

About this tag
WindowsForum.com discussions on IT security cover a range of practical and foundational topics. A recurring theme is the Secure Boot certificate transition, where Microsoft is replacing aging 2011-era certificates with 2023 versions to prevent boot-chain trust failures as certificates expire in 2026. This affects Windows 10, 11, and Server systems, and deployment via Intune requires careful staging and monitoring. Other security threads address the risks of browser-based AI agents like Claude in Chrome on work PCs, emphasizing permission controls and prohibited workflows. The site also covers supply chain security, including a case of COA label trafficking, and enterprise readiness for Microsoft 365 Copilot, which demands governance and security planning. A preview update for Windows 11 introduces native Sysmon support, a key tool for endpoint monitoring.
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    KB5095185 Safe OS Dynamic Update: Secure Boot Certificate Expiry Warning (June 2026)

    Microsoft released KB5095185 on June 9, 2026, as a Safe OS Dynamic Update for Windows 11 version 26H1, refreshing the recovery and setup environment while again warning that long-lived Windows Secure Boot certificates begin expiring this month. The update itself is small in presentation but...
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    Claude in Chrome Work PC: Go/No-Go Safety Checklist, Permissions, and Red Zones

    Before enabling Claude in Chrome on a work PC, make the go/no-go decision first: use Google Chrome only, confirm an eligible paid Claude plan, start on low-risk sites, keep approval prompts on, block prohibited workflows in policy, and decide which sites Claude must never touch. Claude in Chrome...
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    Secure Boot Certificate Updates: 2011 to 2023 Trust Change (June–Oct 2026)

    Microsoft is replacing the original 2011 Secure Boot certificate chain across Windows PCs and servers before certificates begin expiring in June 2026 and continue expiring into October, affecting supported Windows 10, Windows 11, and Windows Server systems that still trust those aging boot...
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    Secure Boot 2023 Certificate Transition: Intune Deployment, Reboots, and Monitoring

    Background Microsoft’s Secure Boot certificate transition is not a simple “flip the switch” update. It is a staged trust-chain renewal for the UEFI Secure Boot ecosystem, replacing older 2011-era certificates with 2023 certificates so Windows devices can keep receiving future boot-chain...
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    Azure Security and AI Certifications: The 2026 Career Roadmap

    Microsoft and Cisco certifications remain among the clearest signals of practical IT competence, but they are no longer static badges. They have become evolving credential frameworks shaped by cloud adoption, automation, AI-assisted workflows, and the need for professionals who can prove skills...
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    Florida Software Reseller Convicted in Microsoft COA Label Trafficking

    A federal jury’s conviction and a subsequent 22‑month prison sentence for a Florida software reseller has thrown a spotlight on a long‑running and under‑reported weakness in the Windows and Office supply chain: genuine Microsoft Certificate of Authenticity (COA) labels, when separated from their...
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    Windows 11 KB5077241 Preview: Taskbar Speed Test and Inbox Sysmon

    Microsoft’s February preview update for Windows 11, KB5077241, quietly bundles a short list of practical, low-risk improvements alongside one platform-level change that deserves special attention from enterprise defenders: a taskbar‑accessible internet speed test and native System Monitor...
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    Executive Playbook for Scalable M365 Copilot Rollout

    In a short but pointed Cloud Wars conversation, Stoneridge Software CEO Eric Newell laid out a simple executive premise: organizations must move beyond AI experimentation and build the operational, security, and governance muscle needed to make Microsoft 365 Copilot (and the broader...
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    January 2026 Windows Patch Tuesday Sparks Out of Band Emergency Updates

    Microsoft was forced into a rare series of out‑of‑band emergency patches after January’s security rollup triggered system crashes, boot failures, and application regressions that left both home users and enterprises scrambling for fixes and workarounds. Background What happened, in plain terms...
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