(CNN) Bella Thorne shared nude photos of herself Saturday after she said a hacker threatened her with them.

"For the last 24 hours I have been threatened with my own nudes," the 21-year-old actress, model and singer wrote in a note posted on Twitter alongside screenshots of text message conversations with the alleged hacker, who said he had pictures and videos of her.

"I feel gross," she added, "I feel watched, I feel someone has taken something from me that I only wanted one special person to see."

Thorne said she was releasing the pictures because "it's MY DECISION" and "NOW U DON'T GET TO TAKE YET ANOTHER THING FROM ME."

"I can sleep tonight better knowing I took my power back," Thorne wrote. "U can't control my life u never will."

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