Mac Pro teardown

Seems like it would be easier to install some trecharous piece of hardwre on an easily maintainable system. You might discover it sooner, but it seems like I could put something evil in a typical PC in like 2 minutes, where it might take an hour to do the same with my phone or laptop, and the phone/laptop version needs to be engineered a lot more to fit in the extremely limited free space in the machine.