Celebrity representatives and security experts used the online posting of intimate photos of Oscar-winning actress Jennifer Lawrence and other female entertainers to sound new warnings on Tuesday about the dangers of storing data on the Internet. Martin Garbus, a New York trial lawyer who over the years has represented actors Al Pacino, Sean Connery, Robert Redford and others, said worried clients had approached him after the apparent mass hacking over the weekend. "Everything on your iPhone, whether it be phone calls, message texts, pictures, is all available." Garbus said clients started to contact him after intimate photos of Lawrence, a star of "The Hunger Games" movie franchise and a best actress Academy Award winner for "Silver Linings Playbook," and other high-profile women came to public attention on Sunday. Personal photos of Sports Illustrated swimsuit model Kate Upton and American actress Mary Elizabeth Winstead were also posted on the image-sharing forum 4Chan.