Bugtraq mailing list archives
Major security risk in the unlock pattern for Android devices
From: Dan Dascalescu <ddascalescu () gmail com>
Date: Thu, 14 Jan 2010 17:16:41 -0800
If you use locking, just look carefully at your Android phone screen and you'll most likely already see the streak/smudge fingerprint trace. An attacker only has to trace that in both directions and is guaranteed access. By contrast, smudges left behind a PIN of N digits offer N! combinations. This is a common scenario that leaves the smudge easily visible: 1. Receive a notification of some sort (IM, SMS, e-mail etc.) 2. Unlock the phone (leaves the fingerprint trace) 3. Delete the notification (one or two taps that don't erase or scatter the smudge). 4. Lock the phone (usually pressing a hardware button, leaving the smudge intact). Issue filed at http://code.google.com/p/android/issues/detail?id=3146#c4
Current thread:
- Major security risk in the unlock pattern for Android devices Dan Dascalescu (Jan 15)
- RE: Major security risk in the unlock pattern for Android devices Francis, Shannon (Jan 15)
- Message not available
- Re: Major security risk in the unlock pattern for Android devices Brian Altenhofel (Jan 15)
- Message not available
- RE: Major security risk in the unlock pattern for Android devices Francis, Shannon (Jan 15)