After enabling enhanced security mode on the switch, you will be able to login for the first time using a user name and password of admin/admin and then will be prompted to change both the user name and password. The password for the admin user must be 15 characters and made up of two of the following characters:

 Two uppercase character, from the range: ABCDEFGHIJKLMNOPQRSTUVWXYZ

 Two lowercase character, from the range: abcdefghijklmnopqrstuvwxyz

 Two numeric character, from the range: 1234567890

 Two special character, from the range: `~!@#$%^&*()_-+={[}]|\:;”’<,>.?/

Please note the above requirement applies only to the administrator user.