Google+ allows you to geotag content, such as photos, that you upload. This is a great feature, but, as Threatpost has reported, geolocation data is of great interest to malicious hackers. Fortunately, there’s an easy way to limit the use of GPS data and Geotagging. Go to the Google+ settings, then scroll to the bottom and verify that the Show photo geo location information in newly uploaded album photos option has been cleared.
Source: https://threatpost.com/google-knows-where-you-live/91844/