security

Prevent SQL injection by using parameterized queries in Supabase and PostgreSQL or ORM equivalents. Parameterized queries separate SQL logic from user input, ensuring that data is treated strictly as data rather than executable code, which stops injection attacks.

The best way to prevent XSS in React is through proper input sanitization, native React escaping, and DOMPurify. Sanitizing user inputs on the server and enforcing strict allowlists ensures that malicious scripts are stripped before rendering content in the DOM.

Secure authentication by enforcing safe API key handling, HTTP-only cookies, and strict session validation. Storing tokens in HTTP-only cookies prevents client-side scripts from accessing sensitive session data, reducing the risk of token theft via XSS.

Yes, your application needs CSRF protection and origin checks to harden API integrations. Implementing CSRF tokens alongside origin validation ensures that external requests are legitimate, preventing unauthorized state-changing actions from malicious origins.

Protect sensitive data at rest and in transit by enforcing HTTPS and encryption across your infrastructure. Apply secure file upload protocols and validate external responses against strict schemas to prevent data exposure and malicious file payloads.

Validate external API responses against schemas during code reviews to harden API integrations and avoid exposing internal errors. Schema validation ensures that incoming data strictly matches expected formats, preventing unexpected data flows from compromising your application logic.