#1 By: Cory Doctorow, July 26th, 2013 17:01
#2 By: Michael Smith, July 26th, 2013 17:45
#3 By: Rhyolite, July 26th, 2013 17:51
You could defeat the robot it by having an exponentially increasing lock out after each wrong password.
#4 By: Robert Johnston, July 26th, 2013 17:54
It seems to me this could very easily be ameliorated (or at least made overwhelmingly impractical) by putting a sliding delay in.
So, for example, if the user enters an incorrect PIN, the phone pauses for 1 second before allowing them to retry. Each subsequent failure doubles the length of time. So it'd be 0:01, 0:02, 0:04, 0:08, 0:16, 0:32, 1:04 (64 seconds), 2:08 (128 seconds), 4:16 (256 seconds), 8:32 (512 seconds), 17:04 (1024 seconds) and so on.
#5 By: Robert Johnston, July 26th, 2013 17:58
That wouldn't really "Defeat" the robot, it would just make it more time-consuming, making the process much less viable. 32 wrong guesses would have the delay at 136 years or so.
#6 By: newliminted, July 26th, 2013 18:02
I'm going to build a robot that punches the phone's owner repeatedly until it divulges the PIN.
#7 By: djhopscotch, July 26th, 2013 18:16
Assuming there is no lock out/phone reset set up for repeated failed attempts. Or a app set up to report location of the repeated attempts to log in.
#8 By: sqlrob, July 26th, 2013 18:18
Every numeric password in 19 hours. Right. Uh huh.
It would take 19 years for mine. Unlike iOS, Android isn't limited to 4 digits.
#9 By: Tim Quinn, July 26th, 2013 18:44
No one here read the OP, right? That is so fun and clever!
#10 By: newliminted, July 26th, 2013 18:45
My method works on all models of phone.
#11 By: kvanh, July 26th, 2013 18:57
What makes you think iOS is limited to 4 digits?
Also did you see the part where even 4 digit iOS PINs can't be broken because of the increasing time delay?
#12 By: Rhyolite, July 26th, 2013 19:38
My two year old manages to activate the increasing time delay on my iPhone on a regular basis by mashing the unlock buttons to see what happens.
#13 By: Tribune1984, July 26th, 2013 19:40
iOS is not limited to 4 digits either (there is a setting to change it)
#14 By: Cowicide, July 26th, 2013 23:18
That was mentioned in the BB post. That's what Apple does.
#15 By: Cory Doctorow, July 31st, 2013 17:01
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