Default System Administrator Account is 'sa'
The default system administrator account for SQL Server should be renamed from 'sa'. This account is well-known and is often the target of any database attack. For a simple way to protect this account, rename the user to something other than 'sa' and strengthen the security of the database by creating a new user called 'sa' with a secure password and no privileges.
Rename the system administrator account to something other than 'sa'.
Any suggestion from Aireforge should be thoroughly tested before being implemented into production.