Celebrity Sex Tapes 2017: Is The Fappening Over? List Of Celebrities Involved In Alleged Intimate Videos Leak

Mischa Barton's lawyer on Tuesday threatened to take legal action against those trying to sell an alleged sex video with nude photos of the actress to media outlets. Several celebrity news websites revealed about the existence of a tape featuring "The OC" star getting involved in sexual acts with an unidentified man.

"Revenge pornography is a form of sexual assault, and it is also a crime and a civil wrong in California. And we will not stand for it," attorney Lisa Bloom said, in a statement. "I have a message for anyone who attempts to traffic in these photos or videos of Ms. Barton: we will find you, and we will come after you. ... You proceed at your peril."

The threat was made a day after the Daily Mail reported that an X-rated video of the 31-year-old actress was being offered to the highest bidder, starting at $500,000. The U.K.-based tabloid also conducted an exclusive interview with Kevin Blatt, a self-described "sex tape broker" — who gained fame after promoting a video of Paris Hilton having sex in 2003 — who claimed that a third-party approached him with footage of Barton having sex.

Read: Celebrities Fear New Sex Tape Hack After Intimate Videos Leak On X-Rated Website

"I believe the person or persons' selling it may be in possession of stolen property. Obviously without the permission of both parties in the tape, the potential sale would be futile," Blatt said in an email to NBC News.

Celebrities have increasingly challenged invasion of privacy and sex tape leaks after a hacker broke into the iCloud accounts of several actresses, including Jennifer Lawrence, Kim Kardashian and Vanessa Hudgens, and published the nude selfies found in their cell phones. The incident, which occurred in 2014, was called "the fappening" — a subreddit by the same name that was created for pictures and news related to the leaked images that were first posted on 4chan.

"It is not a scandal. It is a sex crime. It is a sexual violation. It's disgusting," Lawrence said in 2014.

Here is a list of celebrities whose alleged sex tape surfaced in 2017.

• Lira Galore: In March, the model filed a police report against those responsible for spreading an old sex tape of her online.
• Amanda Seyfried: A number of topless photos and an alleged sex tape of the actress surfaced online earlier in March.
• Kim Kardashian: New footage of the reality TV star's sex tape — leaked in 2007 — with ex-partner Ray J surfaced in February.
• Trey Songz: Late last month, reports surfaced that the rapper has a sex tape with Nicki Minaj.
• Swae Lee: The rapper was accused of leaking his own sex tape in March.
• Fetty Wap: The rapper's alleged sex tape with ex-girlfriend Alexis Sky leaked earlier this year.
• Orlando Brown: The actor's alleged sex tape surfaced on Twitter on Jan. 2.