Grindr, Romeo, Recon and 3fun were found to expose users’ exact locations, just by knowing a user name. Four popular dating apps that together can claim 10 million users have been found to leak precise locations of their members.
“By simply knowing a person’s username we can track them from home, to work,” explained Alex Lomas, researcher at Pen Test Partners, in a blog on Sunday. “We can find out where they socialize and hang out. And in near real-time.”