A computing device infrastructure trust domain system includes first and second computing devices included in a computing device infrastructure system. The second computing device stores authentication information specific to the computing device infrastructure system, and operates to receive a first communication broadcast by the first computing device, verify that the first communication includes the authentication information and, in response, add the first computing device to a trust domain and store a first computing device component hash value included in the first communication. When the second computing device subsequently receives a second communication from the first computing device, it determines whether the second communication includes the first computing device component hash value: If so, the second computing device removes the first computing device from the trust domain, if not, the second computing device performs at least one trust domain operation associated with the first computing device.