Actresses Christina Hendricks and Olivia Munn both allegedly had their phones hacked over the weekend, with celebrity hackers posting leaked photos of the actresses topless and in provocative poses.

Hendricks' rep has admitted that while the voluptuous woman baring her breasts in one photo was not Hendricks, the rest were in fact pictures taken from the star's phone.

She doesn't know who hacked her phone -- but the proper authorities have been notified and an investigation is underway, the rep was quoted as saying by TMZ.

Photos of Olivia Munn in a bra and bikini, meanwhile, were apparently taken from the actress's Twitter and blog. Shots of a naked woman hackers claim to be Munn, however, are said to be fake. Munn herself commented on the leaked photos with a Twitter post, tweeting, If you ever hacked my phone, these are the pictures you'd find and linking to pictures of a baby and a cat.

Christina Hendricks and Olivia Munn aren't the first actresses to have leaked photos attributed to them, and Hendricks is certainly not the first to get her phone hacked.

From Scarlett Johannson and Christina Aguilera to Miley Cyrus and Mina Kunis, here are seven more celebrities who have had to go through a naked photo hack by rabid fans or mean-spirited hackers. Click through our slideshow to see them all.