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A comment on Tomu, a tiny ARM microprocessor which fits in your USB port. Parent comment

Re:Tomu, a tiny ARM microprocessor which fits in your USB port by bsder on Wednesday August 08, 2018 @07:27PM (#17720512)
Newer microcontrollers like the Microchip(nee Atmel) SAM-L11 are implementing ARM TrustZone with hardware security features.
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Re:Tomu, a tiny ARM microprocessor which fits in your USB port by PinguTS on Thursday August 09, 2018 @04:05AM (#17722403)
Secure as in CLKSREW?
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Re:Tomu, a tiny ARM microprocessor which fits in your USB port by bsder on Thursday August 09, 2018 @06:15PM (#17729032)
CLKSCREW needs user mode DVFS (Dynamic Voltage and Frequency Scaling).

These don't exist on embedded processors like the one I referenced.

And, if someone has physical access, all bets are off.

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