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All modern hardware can be destroyed by something that gets sufficient permissions to poke hardware registers. You could for example blow all the efuses in any
by londons_explore 3y ago
All modern hardware can be destroyed by something that gets sufficient permissions to poke hardware registers.
You could for example blow all the efuses in anything with signed firmware versioning - meaning there would be no firmware release that will boot anymore.
You can also typically increase system voltages to cause failure, erase flash so many times it fails in a few minutes, overwrite bootloaders in peripherals so they can't be fixed without a soldering iron, etc.
- devit 3y agoProperly designed hardware with signed firmware versioning has the bootloader permanently disable the ability to blow efuses until reboot before passing control to the OS, either through hardware or a mandatory hypervisor (and the bootloader itself is trusted and cannot be replaced without either a signature or special physical hardware access).