> Owning my computer is still relatively possible. I can build a computer from parts which I can choose This is insufficient according to conditions of TFA. It

> Owning my computer is still relatively possible. I can build a computer from parts which I can choose This is insufficient according to conditions of TFA. It is widely assumed in the security industry (based on evidence from the various state-sponsored attacks we can see) that the NSA and/or other government agencies have backdoors and/or zero-day exploits for both the CPU secure execution modes and common networking hardware. It is very likely that there are "magic packets" which you can send to such devices which install a rootkit payload. If security against even government intrusion is something you care about, it really difficult to buy or make a modern computer that is configured like computers were in the 80's and 90's: just running code we have complete access to, with no hidden interfaces.