An eFax password is a four-digit number that you use to log in to your account. Once you sign up, the four-digit PIN is automatically created. However, you should change the PIN for security purposes. Use the steps below to change your eFax password:
Log in to eFax MyPortal
Click Account Details
Click the Profile tab
In the Password section, click Edit
Enter your Current Password, then New Password
Confirm the password