The pictures were taken several years ago when Vonn, 32, and Woods, 41, were a couple. In addition to Vonn, four more female stars were targeted in the latest celebrity cell phone hack.
"It is an outrageous and despicable invasion of privacy for anyone to steal and illegally publish private intimate photos. Lindsey will take all necessary and appropriate legal action to protect and enforce her rights and interests," Vonn's spokesman told People Monday night. "She believes the individuals responsible for hacking her private photos as well as the websites that encourage this detestable conduct should be prosecuted to the fullest extent under the law."