DIGITALSECURITYGUIDE 3. Check your settings At the bottom of every page is a record of the "Last account activity", showing when you last logged on. Click on "Details" to see the last ten logins, the IP address they originated from, and a guess at the country based on that IP address, which should be accurate in most cases. It will also show whether the access was from a browser or mobile device. For many access types you can even burrow down into each entry to find info like the browser and OS version, or mobile device type. You can also find a more detailed version of the history, complete with more precise (but still estimated) location data, on the Account Settings page under "Recent activity". Consider checking these from time to time to look out for access from unexpected locations, and certainly look here first if you suspect someone's been intruding into your account. If you think anyone may have had access to your account for any period of time, it's worth checking whether any delegation has been set up. On the main Gmail page, click the gear icon and choose "Settings". Go to the "Accounts and import" tab and look at the "Grant access to your account" section. 17