You may change the enable password if you have a console connection to the SSL Visibility Appliance.
Log into the serial console. Choose to go through initial set-up by pressing option # 2. It is not necessary to change anything, keep pressing Enter until you see the following question:
"Would you like to change the enable password now? Y/N [No]".
Type in Y and and you will be prompted to change the password.
Save the configuration and exit out of the wizard.