If you have domains registered with GoDaddy and you used filters on your Gmail account you should read the article written by Brandon. Learn about the Google security flaw.
Here is what he said:
Is it possible for someone to create a malicious filter without having access to your Gmail username and password? No, however, they can force you to create the filter without your knowledge.
The blogosphere is buzzing about a Gmail Security Flaw that has caused some people to lose their domain names registered through GoDaddy.
To understand how this exploit works let me first explain how I would carry it out (if I were a blackhat). Then we can move on and explain the exploit in detail.
Read the proof of concept here.