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by londons_explore
777 days ago
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If your attack vector is bad guys with physical access to the circuit board, disabling JTAG will only be a minor speedbump to them. The vast majority of microcontrollers aren't hardened against physical attack - especially not anything with wifi capability. "disable jtag" is intended to make it harder to make modchips (ie. bypass the coffee subscription), but doesn't help against someone willing to do a one-off glitching attack or similar to dump secrets. |
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