🔒 Frontend Application Hardening

[Tomer-David]

📌 Description

Harden the main frontend application to improve security, stability, and resilience against common client-side vulnerabilities and misconfigurations.
This task focuses on strengthening authentication handling, data protection, and frontend security best practices.

🧭 Scope of Work

• Secure handling of authentication tokens (no insecure storage)
• Protect routes and pages from unauthorized access
• Validate and sanitize user inputs on the client side
• Prevent XSS risks in rendering dynamic content
• Secure API communication (HTTPS enforcement, proper headers handling)
• Improve error handling to avoid leaking sensitive information
• Review dependencies for known vulnerabilities
• Ensure safe state management (no sensitive data exposure in UI state)

✅ Acceptance Criteria

• No sensitive data is exposed in frontend state, logs, or UI
• Authentication tokens are securely stored and managed
• Unauthorized users cannot access protected routes
• Input validation and sanitization are enforced in key components
• No known high/critical frontend dependency vulnerabilities remain
• API communication follows secure standards (HTTPS, safe headers)
• Error messages do not expose internal system details
• Basic security review/testing has been completed

🧾 Notes

This task focuses on reducing frontend attack surface and improving client-side security posture.