Tea, an app that allows women to post anonymous comments about men they’ve supposedly dated, announced Friday that it has suffered a data breach, with hackers gaining access to 72,000 images.

Tea has gained increasing popularity, saying on Instagram that more than two million users in the past few days had asked to join the app. Signing up for Tea requires users to take selfies, which the app says are deleted after review.

One of the world’s most popular dating apps has suffered a data breach exposing selfie images of 13,000 users, it has emerged. Tea, which describes itself as offering “dating safety for women,” said the incident occurred on Friday morning, local time.