It's easy :)
Log on to MyImpactPage.com
Click on the MY PROFILE tab
Click on the “Change Password” section
Enter your current password
Enter your new password and then a second time to ensure you’ve typed the way you think you did. Passwords are case sensitive.
Click the [Change Password] button
IMPORTANT!
Password Requirements:
Must be at least 12 characters
Must have at least one uppercase
Must have at least one lowercase
Must have at least one number