Backend Developer
easyprevent-sql-injection
How do you prevent SQL injection in backend applications?
Answer
SQL injection happens when user input changes query structure.
**Prevention:**
- Use parameterized queries / prepared statements
- Avoid string concatenation for SQL
- Validate input and use least-privilege DB accounts
- Add WAF rules where appropriate
**Interview tip:** mention that ORMs help but raw queries still need parameters.
Related Topics
SecurityDatabasesBackend