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Re:Pwn the ESP32 Forever: Flash Encryption and SEC. Boot Key... by viraptor on Thursday November 21, 2019 @06:29PM (#21600907)
Almost everyone who's selling a real device, in my experience. It's pretty standard to disable firmware reads in embedded cpu products.
Re:Pwn the ESP32 Forever: Flash Encryption and SEC. Boot Key... by baybal2 on Friday November 22, 2019 @02:53AM (#21603683)
And from my experience, it's virtually none.

Since I first started work in OEM electronics in 2007, I only saw that being requested 3 times.