[spacetime_cmplx]

What's stopping someone from placing the silicon under ab electron microscope and reading the data visually? I mean, the circuit that encrypts data has to have some way to load the key (the circuit might not be in the CPU, but it exists somewhere).

[paddw]

There is not an infinite amount of budget to solve any particular case

[ryankrage77]

Somewhat related, this sort of concern was mentioned in this talk about security on the XBOX One, https://youtu.be/U7VwtOrwceo?t=668

Essentially they set an max budget for cost-effective attacks on the hardware, "modding the console needs to be more expensive than 10 games" (about $600), and ignored attacks that cost more than that to for an end user to execute.