this post was submitted on 24 Jul 2026
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Would be cool to have your device partitioned by separate passwords, so you could unlock a dummy system.
That exists. The thing to watch is the difference between separate profiles and a hidden one.
Graphene gives you multiple profiles with their own passwords, but profiles are enumerable. Anyone poking at the device sees that profile 2 is there, so "open that one too" is the obvious next sentence.
The version you're describing works when the second environment can't be shown to exist at all, so it reads as encrypted random noise, which is what empty encrypted space looks like anyway. One PIN gets you a full boring phone, the other gets you your real one.
Only holds up if the boring phone is actually convincing though. Six apps and no photos fails on the spot.
(I work on DeniableOS, which does the hidden version, so weigh that how you like.)