Nude Photos of Jennifer Lawrence, Kate Upton, Ariana Grande and Others Leaked in Major Celebrity Hack

Another set of female celebrities have fallen victim to a major email/phone hacking leading to a leak of private nude photos.

"The Hunger Games" star Jennifer Lawrence is the biggest name on the list, joined by singers Ariana Grande and Victoria Justice, as well as model Kate Upton.

The leak was originally posted on 4chan's anonymous /b/ board (link very, very NSFW). Since then, the same hacker (or perhaps others, it's hard to tell with 4chan's anonymity) has claimed to have a whole list of celebrity photos, including ones from Mary Elizabeth Winstead, Brie Larson, Kim Kardashian, Rihanna and Mary Kate Olsen, just to name a few.

Lawrence's publicist has already verified the authenticity of the photos by releasing a statement in response: "This is a flagrant violation of privacy," the statement said. "The authorities have been contacted and will prosecute anyone who posts the stolen photos of Jennifer Lawrence."

Winstead acknowledges that she took nude photos as well, though she made a point of saying that they were taken a long time ago for her husband. "Knowing those photos were deleted long ago, I can only imagine the creepy effort that went into this," she wrote on Twitter. "Feeling for everyone who got hacked."

As for Victoria Justice, she's claiming the photos are fake. "These so called nudes of me are FAKE people," she tweeted. "Let me nip this in the bud right now. *pun intended*"

Grande, whose face is clearly visible in some of the photos, has not responded yet. Neither has Upton, though her photos have her covering her breasts in a shot that isn't much more revealing than some of her photoshoots.

Still, the breach of privacy is the main concern; the leak reportedly came about because of an iCloud flaw that allowed hackers to access the photos on celebrities' phones. Apple has not yet responded to requests for comment.