What is pin scrambling in the security area? Do I want to enable it?
PIN Scrambling
Instead of the digits always being in numerical order on the screen, the PIN prompt will have digits in random locations on the screen. So if yesterday someone was watching you put your PIN in to unlock your phone, but from a distance where they could only see your thumb and it's general placement on the screen.. it'll be different each time.
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PIN Scrambling
GrapheneOS adds a toggle for enabling PIN scrambling to raise the difficulty of figuring out the PIN being entered by a user either due to physical proximity or a side channel.
https://grapheneos.org/features#pin-scrambling
Graphite Instead of the digits always being in numerical order on the screen, the PIN prompt will have digits in random locations on the screen. So if yesterday someone was watching you put your PIN in to unlock your phone, but from a distance where they could only see your thumb and it's general placement on the screen.. it'll be different each time.