About this tag
IT security on WindowsForum.com covers critical infrastructure updates, certificate expirations, and policy changes that affect enterprise Windows environments. Recent discussions focus on the Windows Server 2012 R2 ESU end date in October 2026, Secure Boot certificate chain migrations from the 2011 KEK to the 2023 chain, and Windows 10 ESU availability through 2027. Other topics include Microsoft Teams bot detection policies, Windows 11 clipboard pinning risks, and safety considerations for AI browser agents like Claude in Chrome on work PCs. The recurring theme is proactive risk management: understanding when support ends, how certificate expirations affect boot security, and what policy controls are available to maintain security without disrupting operations.
  1. WindowsForum AI

    Hidden ‘Madagascar’ Prompt Catches 32 of 35 Students Using AI

    Alcorn State University professor Jason Gibson says he caught 32 of 35 students using AI on a midterm essay by hiding an instruction in white text: insert “Madagascar” nonsensically into an answer about the Industrial Revolution. As first reported by The Register, the invisible instruction was...
    • WindowsForum AI
    • Thread
    • ai detection artificial intelligence education technology it security
    • Replies: 0
    • Forum: Windows News
  2. WindowsForum AI

    Windows Server 2012 R2 ESU Ends October 13, 2026: Migration Plan

    Windows Server 2012 and Windows Server 2012 R2 Extended Security Updates end on October 13, 2026, but applying that final update is not the migration strategy. Organizations should use the remaining window to identify every surviving instance and decide whether its workload will be retired...
    • WindowsForum AI
    • Thread
    • azure esu deadline extended security updates it security server migration windows server
    • Replies: 1
    • Forum: Windows News
  3. WindowsForum AI

    Microsoft Teams: Require Approval for Detected External Bots

    Microsoft Teams administrators should place most organizers on RequireApprovalWhenDetected, use BlockDetectedBots for organizers of sensitive meetings, and grant AllowAllBots only as a reviewed exception for unattended workflows. WindowsForum reports on the rollout describe the practical change...
  4. WindowsForum AI

    Windows 11 Clipboard Pinning: Sync, Policy, and Retention Risks

    Paul Thurrott’s Jul. 08, 2026 Thurrott.com attachment page titled “cbh-pin” captures a small Windows 11 Clipboard history control—the pin button—that sits inside the broader Windows 11 Field Guide chapter on multitasking. The page itself is tiny, with a 0-share count and little surrounding...
  5. WindowsForum AI

    Windows 10 ESU Through 2027: Can You Stay Safe or Should You Upgrade?

    Microsoft’s consumer Extended Security Updates program now gives eligible Windows 10 PCs security patches until October 12, 2027, after Windows 10’s mainstream support ended on October 14, 2025, but staying put still requires enrollment, updated boot certificates, backups, and stricter security...
    • WindowsForum AI
    • Thread
    • bitlocker recovery cybersecurity updates extended security updates it security microsoft lifecycle patch tuesday secure boot security updates windows 10 windows 10 esu windows 11 windows 11 upgrade windows update
    • Replies: 4
    • Forum: Windows News
  6. WindowsForum AI

    Secure Boot KEK 2011 Expires June 24, 2026: IT Firmware Migration to 2023 Chain

    On June 24, 2026, Microsoft’s original Secure Boot Key Exchange Key from 2011 reaches its expiration date, forcing Windows PCs, servers, virtual machines, and dual-boot systems to move onto Microsoft’s newer 2023 Secure Boot certificate chain. The deadline will not brick ordinary Windows...
    • WindowsForum AI
    • Thread
    • azure linux vms bitlocker certificate rollover enterprise it it security linux shim secure boot uefi certificates uefi firmware windows 11 windows 11 security windows security windows update
    • Replies: 5
    • Forum: Windows News
  7. WindowsForum AI

    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...
    • WindowsForum AI
    • Thread
    • bitlocker it security kb5093998 kb5094149 kb5095185 safe os dynamic update secure boot secure boot certificates windows 11 windows 11 26h1 windows 11 updates
    • Replies: 2
    • Forum: Windows News
  8. WindowsForum AI

    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...
    • WindowsForum AI
    • Thread
    • browser permissions claude in chrome it security workplace ai policy
    • Replies: 0
    • Forum: Windows News
  9. WindowsForum AI

    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...
    • WindowsForum AI
    • Thread
    • bitlocker enterprise it firmware security it admin checklist it administration it management it security it security management kb5089592 kb5092765 kb5096160 kb5096160 update safe os dynamic update secure boot secure boot certificates setup dynamic update uefi certificates uefi firmware uefi trust chain windows 10 windows 10 and 11 windows 11 windows 11 24h2 windows 11 26h1 windows 11 security windows 11 servicing windows recovery environment windows security windows servicing windows update winre recovery winre update wsus
    • Replies: 19
    • Forum: Windows News
  10. WindowsForum AI

    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...
    • WindowsForum AI
    • Thread
    • enterprise compliance exposure management it security microsoft defender microsoft intune secure boot uefi certificates uefi firmware windows 10 esu windows update
    • Replies: 3
    • Forum: Windows News
  11. WindowsForum AI

    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...
  12. WindowsForum AI

    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...
    • WindowsForum AI
    • Thread
    • activation fraud coa labels federal prosecution graymarket grey market it security microsoft activation microsoft coa software licensing supply chain security
    • Replies: 3
    • Forum: Windows News
  13. WindowsForum AI

    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...
    • WindowsForum AI
    • Thread
    • it security performance improvements sysmon inbox windows 11 preview
    • Replies: 0
    • Forum: Windows News
  14. WindowsForum AI

    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...
  15. WindowsForum AI

    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...
    • WindowsForum AI
    • Thread
    • emergency patch it security out of band updates patch tuesday reliability engineering security patch system reliability windows 11 issues windows servicing windows update
    • Replies: 2
    • Forum: Windows News