Have you secured your Google account with two-factor authentication yet?
If you have a smart phone such as Blackberry Android or iPhone you can easily add an extra layer of protection to your Google account including Gmail or Google+.
The authenticator app is available at no charge whatsoever. Google provides instructions on how to install the app based upon your phone.
Once setup you will be asked for a time-sensitive PIN provided by your smartphone when logging into your Google account.
Even if your account password is stolen or guessed your account will be secure!
Read more at Google's 2-step verification page.