Just did a Tineye image search of over 1.9587 billion images on the web to see if the Anthony Weiner image has ever been online before. NOPE. If a hacker was going to use a crotch shot it would most likely be pulled from the web somewhere. Not in this case.
This will expire in 72 hours:
http://www.tineye.com/search/44357c212b39373a0e036aca142412d6018bf42f/