[Cshelton]

That's the first thing I thought of, tired or sick. Or how many times I've used one hand to type in my password because I had a drink or food in my other.

How would mobile work with this? Sometimes I use both fingers, sometimes just my thumb on one hand. Would it just create multiple behavior profiles for me that are accepted?

In combination of the right password and the behavior match, it seems like this would actually be pretty strong. I'm looking forward to trying to break it tomorrow with a friend.