Jennifer Lawrence and Other Celebs Hacked as Nude Images Circulate on the Web
mashable.com
mashable.com
https://github.com/hackappcom/ibrute
Possibly related? Seems possible hackers are brute forcing Apple ID passwords for known celeb emails to get to their photo stream using this assuming:
#1) the source really is iCloud (which I've heard people say though I don't know where that's coming from) and
#2) this ibrute thing really works (I don't have an Apple ID to test it against nor any interest in hacking accounts, so I have no idea if that's legit).
If #1 and #2 are legit and this is the source, then Apple is going to have a lot of egg on their face because not only would this be a horrible security oversight but the public impact of it due to celeb nudie involvement would be much bigger than your average nebulous security-leak notification.
Some forums have mentioned that there might be a group of people trading stolen images over the course of several years.