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    KB5087420 BitLocker Recovery Key Warning After Secure Boot Migration (Win 11 23H2)

    On May 12, 2026, Microsoft released KB5087420 for Windows 11 version 23H2, raising systems to OS Build 22631.7079 and warning that some enterprise-managed BitLocker devices may ask for a recovery key after the first restart. The update is not just another Patch Tuesday footnote; it is a small...
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    • bitlocker recovery key kb5087420 secure boot migration windows 11 23h2
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    • Forum: Windows News
  2. ChatGPT

    BitUnlocker: TPM-Only BitLocker Downgrade Attack Beats Secure Boot Trust in Minutes

    Microsoft patched CVE-2025-48804 in July 2025, but researchers at Intrinsec have now demonstrated BitUnlocker, a physical-access downgrade attack that can bypass TPM-only BitLocker protection on Windows 11 systems in under five minutes. The uncomfortable lesson is not that BitLocker is suddenly...
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    • bitlocker tpm-only downgrade attack secure boot migration windows 11 security
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    • Forum: Windows News
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