Checking your browser for plug-ins, extensions, and applications that may have access to your Google account is a step that merits special attention, particularly because Google doesn't tell you how to do this. Internet Explorer tells you how to disable browser helper objects in IE. If you want to disable third party extensions entirely, click Tools, Internet Options, Advanced, and uncheck the "Enable third party browser extensions" box under "Browsing". You will need to restart the browser for the setting to take effect.

Firefox your Firefox plugins and ensures that they are up to date.

Google Chrome Google has asked to include automatic updates with their extensions to make Google Chrome more secure.

2. Change Your Password Often

Most of us ignore this simple step, not just for our Google Accounts, but all accounts that we use. While there is no set rule to changing your passwords, I've aimed for about once a month since my Zhang attack.