Naked pictures of Scarlett Johansson and Mila Kunis have appeared across the Web on Wednesday, after their phones got hacked.

Scarlett Johansson will be contacting the FBI to get to the bottom of the scandal involving her, while her attorney has fired off letters threatening websites carrying the stolen copyright protected photographs.

The four pictures leaked from Mila Kunis' phone included allegedly compromising photos of Justin Timberlake - posing shirtless in a bed on one picture and with pink panties on his head in another one.

The nude pictures leaked from Johansson's phone shows her facing the mirror holding just a towel to cover her front, with her bottom completely on display. On another one, she is posing on the bed with her chest and face completely revealed.

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Scarlett Johansson, Mila Kunis Exposed Naked on Web
Actress Scarlett Johansson smiles during the curtain call at the opening night of "A View From The Bridge" on Broadway in New York January 24, 2010. REUTERS
Scarlett Johansson, Mila Kunis Exposed Naked on Web
Cast member Mila Kunis poses at the premiere for "Friends With Benefits" in New York City July 18, 2011. REUTERS
Scarlett Johansson, Mila Kunis Exposed Naked on Web
Presenters Justin Timberlake and Mila Kunis perform a comedy bit at the 2011 MTV Movie Awards in Los Angeles, June 5, 2011. REUTERS
Scarlett Johansson, Mila Kunis Exposed Naked on Web
Actress Scarlett Johansson arrives at the 49th Annual Grammy Awards in Los Angeles February 11, 2007. REUTERS
Mila Kunis
Mila Kunis became the latest Hollywood star to enter the list of cell phone hacking victims. The hacker leaked several confidential and seductive pictures of Mila Kunis and Justin Timberlake. An email reached Perez Hilton, an American blogger and television personality on Wednesday, in which he has offered to sell compromising photos of Justin Timberlake that he sent to his "Friends with Benefits" co-star. REUTERS
Scarlett Johansson
A Florida man has been arrested in the hacking scandal that leaked personal photos of Scarlett Johansson. He is currently free on bail and prohibited from accessing the Internet. REUTERS
Mila Kunis
Actress Mila Kunis poses at the 5th annual Spike TV's Guys Choice awards in Culver City, California June 4, 2011. REUTERS
Fbi