Voltage glitching. An outside attacker who has direct, extremely fine-grained control over the power supply to the chip can cause it to brown out for one instruction cycle, preventing a result of an instruction from being written.
With enough sophistication, physical access is more powerful than root access, no exceptions.
How does XBox get hacked when it uses Secure Boot?
Voltage glitching. An outside attacker who has direct, extremely fine-grained control over the power supply to the chip can cause it to brown out for one instruction cycle, preventing a result of an instruction from being written.
With enough sophistication, physical access is more powerful than root access, no exceptions.