That's right - an unsigned driver loaded and running with #HVCI enabled.
And the best part? The system still appears as locked down.
Article coming soon.
Looks like this post attracted the attention of MSRC - so just to confirm: this is not a vuln!
This is a teaser of my upcoming Secure Kernel research series, and while I did get unsigned drivers to load, it can only be done by breaking the root of trust. Not VTL 0.
Oct 21, 2026 · 5:33 AM UTC

