Securing SQL Server isn’t complicated, but it does require consistent attention to the areas where real risks arise, such as privileges, configuration, encryption, patching, and monitoring. This article outlines 15 practical, high-impact steps you can take to harden your SQL Server environment.
1. Use Low-Privilege Service Accounts
The SQL Server service, SQL Agent, SSIS, and other components should each run under their own low-privilege domain accounts.
Avoid using LocalSystem, LocalService, or Administrator.
Grant only the permissions required to access data/log directories and network shares.
2. Disable the sa Login
If possible, disable the ‘sa’ login.
If legacy