A popular women's dating advice app suffered a major data breach, revealing users' drivers' licenses, messages and other sensitive information. The hack put a spotlight on the flaws in "whisper networks.

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.

Tea's investigation of the incident found that app users' direct messages had been breached, along with some of their photos. "Out of an abundance of caution, we have taken the affected system offline," San Francisco-based Tea said in a statement to CBS MoneyWatch.