I don't think this is possible yet via automated visual screening. The last I heard it only recognizes faces with security systems like Cognitec based on prior facial input. Not much different to police facial recognition software. But then again it's from Korea and they may have already advanced on this further than Google. I'll find out.
It's a crap-shoot. You have bits of 1 and 0. And you have to 1) guess the format and 2) have an algorithm to determine what is porn(an uncertain practice which tends to throw out the baby with the bathwater). All utterly useless where secure communications are involved.
@Parkerpen,
Point noted on the waste, assuming it's true. To me, it is more likely that they just steal money from the bank straight up, without explanations that can raise more questions. Much like they normally do.