To protect front-end transmitted parameters effectively, follow these organized steps:

1. Use HTTPS: Ensure all data transmission uses SSL/TLS via HTTPS to encrypt data between client and server.

2. Implement HTTP Only Cookies: Set cookies with the Secure and HttpOnly flags to prevent XSS attacks and script access.

3. Configure CORS: Restrict allowed domains using CORS headers to prevent unauthorized requests.

4. Data Validation/Sanitization: Sanitize front-end data and validate back-end inputs to prevent injection attacks.

5. Secure WebSockets: Use wss:// for WebSocket connections to ensure encrypted communication.

6. Token-Based Authentication: Use JWTs with expiration and claims for secure authentication and authorization.

7. Rate Limiting: Implement rate limits to protect against DDoS and brute force attacks.

8. Encrypt Sensitive Data: Encrypt sensitive parameters client-side if necessary, ensuring keys are securely managed.

9. Security Headers: Configure headers like CSP, X-Content-Type-Options to mitigate risks.

10. Automate Security Checks: Use tools like OWASP ZAP for regular vulnerability scans and integrate into CI/CD pipelines.

By systematically applying these measures, you enhance security through multiple layers, protecting transmitted parameters from interception and manipulation.