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Curvy actress Scarlett Johansson is threatening legal action against anyone who posts photos of her bare chest and bottom that hit the Internet on Wednesday.

Her lawyer, Marty Singer, has warned websites to remove the "stolen copyright protected private photographs" -- or else.

"The highly personal and private photographs at issue capture our client self-posing in her own home in a state of undress and/or topless. If you fail to comply, you will be acting at your own peril. Please govern yourselves accordingly," Singer said in a statement.

SODAHEAD SLIDESHOW: See the biggest celeb photo scandals.

As of Thursday, gossip blogger Perez Hilton had removed the racy pics with the note: "photos removed by request."

E! News confirmed that the FBI is currently investigating who may have hacked the actress' computer or other device and leaked the pics.

HOT SHOTS: Scarlett Johansson

"The FBI is investigating a person or group responsible for a series of cyber intrusions of high-profile figures," FBI spokeswoman Laura Eimiller said.

Also on Wednesday, TMZ reported that a hacker got his or her hands on Mila Kunis' cell phone, leaking a shirtless photo of Justin Timberlake (and one where he's sporting a pair of pink panties over his head). Were they "Friends With Benefits" after all? Maybe.

PHOTOS: See the latest celebrity pictures to hit the Internet.

Other leaked photos reportedly show Kunis in a bathtub, but all you see is her head, and an "explicit" pic of another male.

From Johansson to Kunis/Timberlake to Vanessa Hudgens, let us know: Which celeb had the biggest racy photo scandal?