Laser Your Way Into Debug Mode On The RP2350 - Hackaday

Automated excerpt

The RP2350 is actually a pretty secure chip, all things considered. It has secure boot, ARMv8’s TrustZone to split secure and non-secure execution, and you can permanently disable debug — the Pi Foundation even included glitch detection, meaning the traditional ‘zap the chip until it obeys’ technique is blocked. We’ve talked about laser fault injection before; ironically, we’ve also featured Pi Pico-powered glitching attacks — the kind that this chip’s glitch detection thwarts.

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