How to remotely log out of your account
If you left yourself logged in at an internet cafe or on a friend's computer, don't worry: you can see and remotely log out all of the computers and devices on which you are currently logged in.
- Open the Settings → Password & Security screen.
- Under the "Logged In Sessions" heading, you will see a list of all the places you are currently logged in to your account.
- To remotely log out one of the other sessions, enter your password and click the "Unlock" button. Then click the "Log out" button for the session you wish to end.
See all logins over the last four weeks
At the bottom of the Settings → Password & Security screen is a link to view the history of every time you logged in to your account over the last four weeks. This includes all protocols (web, IMAP, SMTP etc.) and will also show any failed attempts to log in to your account.