🔐 Security
3 blocks
Security Building Blocks
Protect your applications from attacks and bad data
Beginner
Input Validation
Every form field a user touches is a doorway into your app, and most users will type something you didn't …
Beginner
CSRF Protection
A user can be logged into your site in one tab and visit a trap page in another. <strong>The trap …
Beginner
Race Conditions
Two users click "Redeem" on the same coupon at the same millisecond. Your app checks if it's available for both, …