Skip to main content

C1. Login basics

What this page helps you do​

Think through the first login and session basics before launch.

Why it matters​

Login bugs can become account-takeover bugs fast.

You should already have​

  • an app with user accounts

Skip this page if​

  • your app has no user accounts

Then go to B11. No user accounts.

What to do​

  • use a trusted auth approach
  • protect sessions and reset flows
  • make admin access clearly separate if needed

Use a well-known auth library or provider instead of building login flows from scratch.

Common mistakes​

  • rolling your own auth too early
  • weak password reset flows
  • admin users sharing normal login paths with no extra protection

Next step​

Go to C2. Protect admin pages.

Advanced notes​

TODO for contributors: add a beginner-friendly note on sessions versus tokens without diving into protocol details.