this post was submitted on 01 Sep 2026
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They aren’t looking at you entering the pin. They are looking at smudges left on your screen. With pattern unlock, the path is repeatable and has fewer possibilities than disconnected fingerprints on the glass. With pin scrambling, the smudges on the glass are meaningless.
Also, who are "they"? Yes, someone in some situation can figure out the patter from smudges. In other situations someone can see your PIN. If Grapehene dev are so worried about screen unlock security they should implement the system BlackBerry had which was super convenient and impossible to figure out even when looking directly at someone's screen.
Make your own contribution to project then.