To change your password, go do the dashboard and select My Account:
The Change Password link is at the very bottom of the page:
Once you select Change Password, you will be prompted to add a new password and then repeat it to be sure we got it right. It's important to note that we take your security very seriously and we require passwords that are very strong. We recommend at least 12 characters, and they must be alpha-numeric.
Once your password meets our minimum criteria, you will be able to select Update Password to save it for future use.