In this section, we will briefly cover some essential techniques to minimize and prevent SQL injection attacks on a system. We'll also look at best practices in a simple format.

The following techniques can be used to prevent SQL injection attacks:

• Run the database service with minimum privileges.
• Monitor all database traffic using a web application firewall (WAF) or IDS/IPS.
• Sanitize data.
• Filter all client data.
• Suppress error messages on the user end.
• Use custom error messages rather than the default messages.
• Use safe APIs.
• Perform regular black-box penetration on the database server.
• Enforce type and length checks using parameter collections on user input; this prevents code execution.

In the next section, we will learn about Cross-Site Scripting (XSS) vulnerabilities.