[cgislason]

I've seen randomized images bypassed by simply taking a screenshot in conjunction with logging keyboard and mouse actions.

[nik_0_0]

Yes, quite often the "On Left Click" action is tied to a "Take Screenshot" function, useful for defeating these types of on-screen keyboards, randomized or not.

[pavel_lishin]

That seems like it would take up a lot of space/bandwidth, but I suppose that it's 2012 and it's trivial.