Facebook has had a Foursquare-like check-in system for its mobile app for a while. Facebook Places has limited functionality, though, intended primarily for logging in at restaurants and retailers. Andrew Storms, director of security operations, and Tim ‘TK’ Keanini, nCircle’s CTO, offer opposing, but complementary viewpoints on the privacy and security implications of sharing location information. Storms: “Posting this level of detail in any online forum opens the door to potential nefarious action””]
Source: https://www.csoonline.com/article/2129466/caution–should-you-share-your-location-on-facebook-.html