The Friends with Benefits actress explained her e-mail that "hasn't been valid in over three years was hacked" last year.
"They got a photo of me. I'm not naked or anything. I was covered in bubbles, eating," Kunis told Harper's Bazaar.
When she was asked how she protects herself against information leaks, she answered: "Well, I don't send naked photos. Not that there's anything wrong with that."
I Don't Know How She Does It co-stars Christina Hendricks and Olivia Munn have been the latest victims of phone hacking.
Kunis also said that she is more paranoid now, adding: "It's hard to open up to people because often they're more curious than they actually care about you."
Watch Mila Kunis and Justin Timberlake's video interview with Digital Spy below: