Very likely that the bug was from the "Find my phone" app or whatever it is called considering apple has pushed out an update. For what I can gather, the person who leaked them collected them from others who have acquired them. Transactions was made via bitcoin. After this guy has enough "footage" he went on 4chan and leaked them and tried to get more money for them. So, supposedly there is more pictures out there that did not get leaked. I for one am baffled that someone actually tried to get money over there. FBI is monitoring that closely right now and probably going through catalogs and finding the responsible one.
Do have to put out the fact that putting naked pictures of yourself on a server is probably never a wise idea.........