Protect your Google account by enabling 2 step verification. Learn more by clicking the link below:
Yahoo Mail allows you to secure your email by using 2 step verification. Click here to learn how to turn on 2 step verification for Yahoo Mail.
Warning: We do not recommend yahoo email due to a change in policy that allows yahoo to re-distrubute your user accounts. This is a considerable security risk, please read more at Naked Security.
Hotmail/Outlook allows you to secure your email by using 2 step verification. You can do this by going to this link: http://account.live.com/Proofs/Manage
iCloud/Me/Mac now gives you the ability you to secure your email with 2 step verification. Click here http://support.apple.com/kb/HT5570 to learn more about it.