Gmail, A huge part Google mostly every one using there primary email as gmail (including me) and as there are so many hackers all around in this global village. And there is service left which is safe from malicious hackers who are constantly comes with terrifying new ways to steal to
Google provide an easy way to get the information about your account at the bottom of your inbox as Last account activity: X minutes/hours/days ago under the line you will see the button Details.
Clicking that button you will get all the information about your account logging info with IPs and geographical locations.
Hope this info will help to safe your accounts...