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A comment on This $200 3D printed bot can crack your phone's PIN in 20 hours. Parent comment

Re:This $200 3D printed bot can crack your phone's PIN in 20... by jaredmcateer on Friday July 26, 2013 @10:36AM (#6108420)
Yea and you can only select an adjacent spot so that also limits combinations.
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Re:This $200 3D printed bot can crack your phone's PIN in 20... by woqe on Friday July 26, 2013 @02:05PM (#6109549)
You can actually select spots not adjacent to the current one.

Consider the "spots" labeled in rows from left to right as 1 2 3, 4 5 6, and 7 8 9.

If I start at 1, I can go to 2, 4, 5, 6, and 8 directly. Also, if I have used all spots except 1 and 9, I can go to 1 then directly to 9.

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Re:This $200 3D printed bot can crack your phone's PIN in 20... by ZoF on Friday July 26, 2013 @10:41AM (#6108453)
Yep, and the fact that the above calculation doesn't even allow for combinations greater than four... Overall not a reliable number :)
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