Implement HTTPS to encrypt data in transit.
Use Helmet to set various HTTP headers for security.
Implement rate limiting to prevent brute-force attacks.
Use CSRF tokens to protect against Cross-Site Request Forgery attacks.
Validate and sanitize user input to prevent SQL injection and XSS attacks.
Set up proper error handling to avoid exposing sensitive information in error messages.
Implement HTTPS to encrypt data in transit. Use Helmet to set various HTTP headers for security. Implement rate limiting to prevent brute-force attacks. Use CSRF tokens to protect against Cross-Site Request Forgery attacks. Validate and sanitize user input to prevent SQL injection and XSS attacks. Set up proper error handling to avoid exposing sensitive information in error messages.