Changing your password will sign you out of your account immediately, so you will need to sign in again.
If you have totally forgotten your password, you can request a password reset email to be sent to your registered FileFactory account email address.
Here's how to change your password:
Sign in to your FileFactory account using your existing email address and password. Then go to your Account Summary page, find the Password section, verify your Date of Birth, and then confirm your new password.