Although it may be impossible to build fully trustable hardware with 100% consistency for every possible case, I think it's still a worthy cause to build hardwa

Although it may be impossible to build fully trustable hardware with 100% consistency for every possible case, I think it's still a worthy cause to build hardware that is trustable for the majority of people. I think having one's machine tampered during transportation is a risk most people can accept as it would be too expensive and obvious for any entity to carry out chip substitution indiscriminately on a large scale. Most people would not be worth the trouble. What we should be worried about are manufacturers which build malware into their products as part of the manufacturing process. Maybe a better area of focus than malware prevention would be malware detection and filtering. We could have hardware chips which detect anomalous activity, block it as much as possible and notify the user. You could source multiple such chips from a range of providers to reduce the risk of tampering of any specific chip.