it's essentially , depending on the severity of the exploit, like having two cpus in one body, and one cpu gets to control some secret arms on top of everything else. if you don't have knowledge of the intrusion, physical access and software access (the backdoor will be hard-coded for encrypted access) you aren't going to be aware of it, let alone be able to control it.  temple was built to handle software level exploits, including lazy corporate theft. it's not capable of handling advanced corporate theft, when the very chip it is running on is the exploit.  you need to build a lot more control into the system for that and have full real-time 3rd party packet detection. good luck. easier to keep your machine airgapped.
Denmark