The Tea app was intended to help women date safely. Then it got hacked

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.

“We have engaged third-party cybersecurity experts and are working around the clock to secure our systems,” San Francisco-based Tea Dating Advice Inc. said in a statement.

The...