Authentication & security

Summary

Interview-level fluency in full-stack auth flows and common vulnerabilities — a frequent topic since auth touches every layer of the stack.

• 1Be ready to diagram a complete login flow from frontend form to backend token issuance.
• 2Know how you'd securely store and verify passwords, and where tokens should live on the frontend.
• 3Prepare a real security consideration you addressed in a full-stack project.