The hardware needs to validated, lest misery follow

"True, hardware has faults too and can be attacked, and supply-chain security is a real problem. However, hardware is much harder, and far more expensive to compromise. But unless the attacker has a say in which particular processor you’re using, or at least knows of your plans many years in advance, such an attack would be very costly and extremely hard to execute." -- Gernot

"RISC-V might be the answer with trusted foundries and observation, still its not going be easy..., Linus seems to think so" -- Phil