Query parameterization is a crucial technique for preventing SQL injection attacks, which can compromise sensitive data and gain unauthorized access to databases. By separating SQL code from user input values using placeholders (parameters), query parameterization ensures that user input is treated as data, not executable code. This approach eliminates the need for manual escaping or sanitization, making it an effective way to mitigate the risk of malicious SQL injection attacks. Prepared statements offer better security benefits than non-prepared statements, and stored procedures provide an additional layer of security when used with query parameters, allowing developers to control access. Implementing query parameterization and using tools like Snyk's vulnerability scanner can help identify potential security risks early on, reducing the chance of exposing applications to attackers.