[smashface]

I prefer to use the draw password but honestly if you look at the finger smudges on my phone, you could probably still guess my pattern.

[piotrkubisa]

I liked BlackBerry10 picture passwords [0][1]. Unlocking was a bit slower than drawing few lines but good enough to unlock device fast - I'd say even if you were weakened by some disease/illness/exhausting workout moving slowly a number to target is easier than drawing few crossed lines.

[0]: https://helpblog.blackberry.com/2014/02/how-to-use-picture-p...

[1]: https://youtu.be/WmBhvn9Q9SE?t=151

[r1ch]

I once got a friend's iPhone passcode correct first try by looking at finger smudges. If you're entering a passcode frequently it's definitely a risk to be aware of.

[chucksmash]

Yep, pretty easy to do - especially if your pattern is recognizable or doesn't cross over itself.

"Oh hey, cool, a Σ!"