Dilemma: What If Your Biometric Device fails and get replaced?

When using a biometric device you should always have a password based logon as a backup. What if you burn the ---- out of your hands?

"The software has to read patterns in the finger print to figure out who is logged in. If the new scanner reads your print it will probably unlock the machine. The bigger issue comes in making the software smart enough to avoid false positives. (someone else's finger)

The finger swipe versions are not mean to be overly secure. Just as a quick response to people complaining about having to remember passwords."