Jennifer Lawrence, Ariana Grande, Kate Upton, Kirsten Dunst and Aussie model Teresa Palmer are among a slew of celebrities whose nude photos have been leaked online.
A spokesperson for Lawrence confirmed the photos are real and slammed a hacker for a "flagrant violation of privacy".
"The authorities have been contacted and will prosecute anyone who posts the stolen photos of Jennifer Lawrence," the spokesperson said in a statement.
The revealing images, which show Lawrence in various states of undress, were reportedly among dozens posted on Sunday by an anonymous source on image sharing website 4chan.
Some of the photos of the 24-year-old Oscar-winning actress seem to be selfies, while others appear to have been taken by someone else.
Almost as soon as the images appeared on Twitter, the term "Jennifer Lawrence" started trending.
The hacker reportedly claims to be in possession of more than 60 nude selfies of Lawrence posing in compromising positions. But she's not the only one to have fallen victim.
The hacker claims to have hacked dozens of celebrity accounts, including those of A-list stars Ariana Grande, Kate Upton, Kirsten Dunst, Teresa Palmer, Kim Kardashian, Hilary Duff, Gabi Greko and Victoria Justice.
A handful of intimate photos appear to show Palmer with her ex-boyfriend Scott Speedman, including a couple of the actress lounging topless in a pool along with fully nude images.
Palmer has yet to comment on the leak.
Mary Elizabeth Winstead, another actress exposed immediately denounced the photos on Twitter.
"To those of you looking at photos I took with my husband years ago in the privacy of our home, hope you feel great about yourselves," she wrote.
Justice said the photos of her aren't real.
"These so called nudes of me are FAKE people. Let me nip this in the bud right now. *pun intended*," she tweeted.
Upton's spokesperson told HuffPost that they are looking into the allegations.
Celebrities have often been targets of phone hackers, with Christina Hendricks, Olivia Munn and Blake Lively recent victims.
In 2012 a man was sentenced to 10 years in prison for releasing nude images of Scarlett Johansson on the internet.
