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Thread: "Reverse smudge engineering" foils Android unlock security

  1. Master Droid
    JeffDenver's Avatar
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    #11
    Ditto. I dont do it for security reasons, I do it because I am anal about having a perfectly clean screen, heh heh

    I have friends who never wipe (their phones I mean), and I dont know how they do it. That would annoy the crap out of me.
  2. DF News Team/Mod
    Malvado's Avatar
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    #12
    Quote Originally Posted by JeffDenver View Post
    Ditto. I dont do it for security reasons, I do it because I am anal about having a perfectly clean screen, heh heh

    I have friends who never wipe (their phones I mean), and I dont know how they do it. That would annoy the crap out of me.
    I couldn't help but laugh at "I have friends who never wipe" LMAO!

    Sent from my DROID3 using DroidForums
  3. Droid Sensei
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    #13
    Saw this on my OG, but not my Bionic.

    Sent from my DROID BIONIC using DroidForums
  4. Droid Ninja
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    #14
    Ahh! I do this all the time! I usually do it with the pins on iPod touches mostly. So.... you can do it with pins, so really just clean your screen or smudge it everywhere!

    Sent from the best phone on Verizon!
  5. Super Moderator
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    #15
    Quote Originally Posted by NeoPhoenixTE View Post
    The same approach can be used for a pinpad. Heck, smudge engineering was used back in the 80s on door keypads. Dust for prints, and you have a 1 in 16 chance of getting it right.

    Why this is news is the real story. ;P
    Not to nitpick, but a 4 digit pin is a 1 in 24 odds (4! or 4*3*2*1). As far as being news, look at everything the common user overlooks on a daily basis. Case in point, look through the support boards for threads of people who didn't make a backup...


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  6. Theme Developer
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    #16
    The Zagg on my tbolt holds fingerprints too well, even after washing my hands and all. The anti-glare on my Xoom you can barely notice any fingerprints ... If I have a pattern or pin to unlock, I make sure to smudge it up a little more after unlocking; foils any plot of "reverse smudge engineering" and lays some false trails.
    Moto Droid 1 : Project Elite v4.2
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