Yesterday, Facebook announced the availability of remote logout, the service will have close sessions left open in other locations where a user is located. As you stated the official announcement on the social network, a user often "borrow a friend's cell phone and return it without logout", or using a public computer and forget to log off. Against this scenario, it is now possible to see if there are open sessions on other computers directly from the security section of the settings on Facebook.
By accessing this section the user can observe, for each session started, the last access time, computer name, the location of the (approximate geolocation by IP address), browser and operating system. With all these data can not only remember where I left the session open, but also to identify if people are accessing outside Facebook with the user. It will also be configured to be alerted via email when they sign logins from computers that have not been approved, a feature that is interesting from the point of view of safety.
Please note that the service is not available for all users, but hopefully it will be soon. Anyway, as a final tip, do not take the habit of closing a session remotely, but better take practice to do so when they leave a computer and can be unnecessarily expose our privacy if another user takes control of our meeting.
