Ensuring that the sa login account is set to Disabled

Note: Changing this setting can impact all the other products on the database server for which you use the sa login account. Ensure that the settings do not impact the other products.

The sa account is an SQL Server account with the sysadmin privileges. Enforcing this control reduces the probability of an attacker to execute the brute force attacks against a well-known principal.

Execute the T-SQL query:

ALTER LOGIN sa DISABLE;