The celebrity hackers are back … with a vengeance. The latest victim appears to be Rihanna — despite the fact that a simple Google search reveals her boobs line the online landscape. Early Sunday AM two nude pictures that appear to be RiRi were leaked onto 4chan/Reddit … one with a censored version of her breasts … the other pic showing bare ass and slight nipple. They look like they were taken during some sort of fitting. As previously reported, a second wave of leaks has been going down all weekend — nude pics of what appears to be Kim Kardashian, Vanessa Hudgens, Kate Bosworth and Hope Solo have all surfaced. Gabrielle Union is also a victim — topless pictures of her surfaced — and she told us her legal team will contact the FBI.