TrustZone. It is "one level deeper" just like any other hypervisor or monitor. As far as I know, it is quite common in Android phones for HSM and DRM purposes.

TrustZone. It is "one level deeper" just like any other hypervisor or monitor. As far as I know, it is quite common in Android phones for HSM and DRM purposes. Yay? =\ http://www.arm.com/products/processors/technologies/trustzone/ http://www.arm.com/products/processors/technologies/trustzon... Edit: And, of course, it is probably exploitable in some way. See http://bits-please.blogspot.com/2015/08/exploring-qualcomms-trustzone.html http://bits-please.blogspot.com/2015/08/exploring-qualcomms-...