An embodiment: (a) receives a request for a measurement of a hypervisor from at least one computing node that is external to the at least one machine; (b) executes a previously measured measuring agent to measure the hypervisor, after the hypervisor is measured and booted, to generate a measurement while: (b)(i) the at least one machine is in virtual machine extension (VMX) root operation, and (b)(ii) the measuring agent is in a protected mode; (c) attest to the measurement, based on at least one encryption credential, to generate an attested measurement output; and (d) communicate the attested measurement output to the at least one computing node. The hypervisor does not include the at least one encryption credential while the measuring agent is measuring the booted hypervisor. Other embodiments are described herein.