Voltage glitching is an old technique. Here's a paper about it from 2 decades ago https://ieeexplore.ieee.org/document/1708651 but it is at least another decade older as an attack vector.

Defend against it one way by voltage monitoring or physical intrusion detection, and another way by droop and such detection and countermeasures on the device. Both probably just increase the cost of hacking it by some orders of magnitude, but that may be enough.