Securing CRUD functionality in a database involves following several best practices to protect data integrity and prevent unauthorized access. Some key best practices include: Utilize role-based access control (RBAC) or attribute-based access control (ABAC) Use parameterized queries or prepared statements to prevent SQL injection attacks  Encrypt sensitive data at rest and in transit   Adhere to the principle of least privilege  Maintain audit trails to track changes made through CRUD operations  Use secure communication protocols like HTTPS to encrypt data transmitted between the application programming interface (API endpoints) and the database server  Keep database systems updated with security patches and updates Implement database activity monitoring tools