Oscar-winning actress Jennifer Lawrence and model Kate Upton are among a long list of celebrities involved in a mass hacking of private and intimate photos.<br/> <br />Images purporting to be of dozens of other female actresses, models and athletes started to appear online September 1.<br/> <br />A spokesperson for Lawrence said, quote: "This is a flagrant violation of privacy. The authorities have been contacted and will prosecute anyone who posts the stolen photos of Jennifer Lawrence."<br/> <br />Upton's lawyer called the hacking "an outrageous violation" of her privacy.<br/> <br />A spokesman for the FBI was not immediately available to comment.<br/> <br />The authenticity of many of the photos could not be confirmed.