By default there is only a single user account named “root”, with the root password, which accesses the administrator level. You cannot delete this basic user account unless you have created a different administrator. You cannot modify the access level of the basic user account.
Note:
Removing the root user may disable access to the gateway, as the root account is the only account to which lockout, inactivity, and password aging mechanisms are not applied.
Important:
For security reasons, you must change the default root account password immediately.
Ensure that the password does not contain the username.