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Database Security Best Practices

Database security is key in ensuring sensitive information is kept intact and isn't exposed to a malicious or accidental breach. Here are some best practices related to SQL security:

1. Least Privilege Principle​

This principle states that a user should have the minimum levels of access necessary and nothing more. For large systems, this could require a good deal of planning.

2. Regular Updates​

Always keep SQL Server patched and updated to gain the benefit of the most recent security updates.

3. Complex and Secure Passwords​

Passwords should be complex and frequently changed. Alongside the use of GRANT and REVOKE, this is the front line of defense.

4. Limiting Remote Access​

If remote connections to the SQL server are not necessary, it is best to disable it.

5. Avoid Using SQL Server Admin Account​

You should avoid using the SQL Server admin account for regular database operations to limit security risk.

6. Encrypt Communication​

To protect against data sniffing, all communication between SQL Server and applications should be encrypted.

7. Database Backups​

Regular database backups are crucial for data integrity if there happens to be a data loss.

8. Monitoring and Auditing​

Regularly monitor and audit your database operations to keep track of who does what in your database.

9. Regular Vulnerability Scanning​

Use a vulnerability scanner to assess the security posture of your SQL.

10. SQL Injection​

SQL injection can be reduced by using parameterized queries or prepared statements.

These practices can significantly improve your SQL security posture. However, remember that security is not a one-time effort, but a continuous process. Regular assessment and necessary updates are key. Remember to keep an eye on security news concerning SQL Server and regularly check for new security risks or vulnerabilities.