Tea, a provocative dating app designed to let women anonymously ask or warn each other about men they'd encountered, rocketed to the top spot on the U.S. Apple App Store this week. On Friday, the company behind the app confirmed it had been hacked: Thousands of images, including selfies, were leaked online.

The app announced it had discovered “unauthorized access to an archived data system” in a statement on social media Friday. That data system held an estimated 72,000 user-submitted images, including 13,000 images of selfies, some of which included photo IDs submitted during account verification.

Hackers have breached the Tea app, which recently went viral as a place for women to safely talk about men, and tens of thousands of women’s selfies and photo IDs have now seemingly been leaked online.