Skip to content
Skills
Problems
Questions
Drills
Roles
Skills
Interview
Contest
Leaderboard
Problems
Questions
Drills
Roles
Skills
Interview
Contest
Leaderboard
Home
/
Full Stack Developer
/
Questions
/
Authentication
Full Stack Developer
Authentication questions
9 questions on Authentication for full stack developers, easiest first.
Easy
1
Storing user passwords
easy
Medium
3
JWT in localStorage
medium
CSRF with cookie sessions
medium
Sensitive data inside a JWT
medium
Hard
5
Refresh token rotation
hard
JWT algorithm confusion
hard
Redirect check that can be bypassed
hard
Designing password reset links
hard
OAuth for a browser-only app
hard