The hacker responsible claimed to have over 60 nude photos of J-Law, as well as explicit videos of the young star. The pictures were allegedly retrieved because of an Apple iCloud leak that allowed celebrities' phones to be hacked, reports Buzzfeed.
A spokesperson for the Oscar winner released a statement saying: "This is a flagrant violation of privacy.
"The authorities have been contacted and will prosecute anyone who posts the stolen photos of Jennifer Lawrence."
Other celebrities targeted by the hacker - the list is over 100 long - include Rihanna, Cara Delevingne and Kate Upton, although the authenticity of some photos is still in question, with a rep for Ariana Grande, one of the young victims, telling Buzzfeed in an email: "The photos are completely fake."
Former Nickelodeon star Victoria Justice, who was also targeted in the hack, tweeted that the photos of her aren't real, posting: "These so called nudes of me are FAKE people," she said. "Let me nip this in the bud right now. *pun intended*"
Fans of Jennifer Lawrence's (whose hashtag #JenniferLawrence has been trending on Twitter since last night), posted messages in support of the star, with one user tweeting: "I just hope to heck this doesn't ruin this amazingly talented, grounded young woman's confidence, & thus career. #JenniferLawrence"
Check out Jen (fully clothed) in some of her best fashion moments over the years in the slideshow below...
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