this post was submitted on 09 Mar 2025
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189
The ESP32 "backdoor" that wasn't | Dark Mentor LLC (darkmentor.com)
submitted 1 week ago by [email protected] to c/[email protected]
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[–] [email protected] 6 points 1 week ago

I tried to offer a gentler backgrounder on this HCI business: https://lemmy.ml/comment/17160273

The opcodes that actually jumped out at me more than the undocumented ones were the ones that erases the flash.

But the conclusion stands. None of this is a 'backdoor' unless you can secretly access it from the wireless side and nothing in the presentation points to that. If I had to guess, the opcodes are for QA and tuning on the manufacturing line.