TECHNOLOGY

Foursquare Privacy Hole Exposed By Hacker

08/30/2010 05:12 am ET | Updated May 25, 2011

If you have checked in with Foursquare in San Francisco in the last three weeks, Jesper Andersen probably knows where and when -- even if you've set your check-ins to be published to friends only.

Andersen, a coder who recently built a service called Avoidr that helps you avoid social network "friends" you don't really like, figured out that Foursquare had a privacy leak because of how it published user check-ins on web pages for each location.

Read more on wired.com

Suggest a correction