Did someone access my Gmail account? In a desktop web browser, Gmail allows you to review recent email access activity. Select Details in the lower-right area below displayed emails, below Last Account Activity (Figure A). Select Details in the lower-right area below displayed emails, below Last Account Activity.

Review devices Go to your Google Account. On the left navigation panel, select Security . On the Your devices panel, select Manage all devices. You'll see devices where you're currently signed in to your Google Account or have been in the last few weeks.

Go to http://accounts.google.com/signin/usernamerecovery and enter any email accounts or phone numbers that you've had for a while and which may have been used as recovery info. The “find your email” page can help you locate any forgotten Google accounts. On the next page, you'll be asked for your name.