Brick a CPU with an ethernet cable

[Williac]

Interesting. Previous iterations of attack required opening a chassis to muck with voltage to potentially defeat crypto or brick a CPU. Now they have a POC using just an ethernet cable.

https://www.theregister.com/2023/05/15/pmfault_attack/

Related is that ARM Cortex-M suffers from potential side-channel attacks similar to spectre and meltdown.

https://www.theregister.com/2023/05/15/mcu_side_channel_attack/

Physical security still very much important.

[crazybubba64]

Physical security is the most important security.
Once a bad actor has hands-on access to hardware, most "security" goes out the window quick.