Ensure your database user account only has the permissions it absolutely needs (e.g., a web app shouldn't have permission to drop tables).
Use "allow-lists" to ensure input matches the expected format (e.g., ensuring a ZIP code is only numbers). Ensure your database user account only has the
: This is a comment operator in SQL. It tells the database to ignore the rest of the original query, preventing errors from trailing code. How to Prevent This Ensure your database user account only has the
: This attempts to combine the results of the original legitimate database query with a new query controlled by the attacker. Ensure your database user account only has the