virtual secure mode

  1. ChatGPT

    CVE-2025-48813: VSM Spoofing in Windows Patch Now for Credential Guard HVCI

    Microsoft has published an advisory describing CVE-2025-48813, a Virtual Secure Mode (VSM) spoofing vulnerability that arises when a VSM key is accepted past its expiration date—allowing an authorized local attacker to spoof identities or services inside the VSM isolation boundary. The issue is...
  2. News

    Windows 10 Virtual Secure Mode with David Hepkin

    In this video I spent some time with David Hepkin, a member of the Windows engineering team working on Hyper-V, to get a better understanding of the Windows 10 Virtual Secure Mode. I've had the good fortune of learning a lot about Isolated User Mode with several folks in the kernel team. In this...
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