If you are the one who accesses Gmail via multiple devices and often forgets to sign out of Gmail, chances are that your account can easily be accessed if the device is a public computer as Gmail remembers your Login information until you explicitly Sign-out. But Don’t worry, now Gmail has a solution for you. Now Gmail shows you your Gmail sessions at bottom of your Gmail page which will let you know on how many locations you are logged on.

When you click on Details, it’ll display list of all the IP addresses on which your account is currently logged on and with what method used to access your account like from Browser, via POP or IMAP etc.

You can then easily logout of all other sessions by just clicking on “Sign out all other sessions”.

Earlier, if you forget to logout of your Gmail account, the only solution was to change your password so that your account cannot be accessed by anybody else. This new security feature would soon be available to all Gmail users.

Via Official Gmail blog