Supply chain management is a whole area of study. iPhones and ChromeOS are the only two devices I trust in the retail supply chain to be too difficult to be cas

Supply chain management is a whole area of study. iPhones and ChromeOS are the only two devices I trust in the retail supply chain to be too difficult to be casually pwned but still boot. But even then, the evil maid attack doesn't have to fully subvert the booted OS to be useful. A device inside an up to date ChromeOS laptop could just record the keyboard keystrokes to an SD card to be retrieved later, which would get the evil maid your passwords. That's why you've got MFA but it's scary to think about!