Free Course — No signup required

Web Security for
AI Applications

Five focused lessons on securing production AI applications: JWT issuance and verification, Google OAuth 2.0 with Passport.js, CSRF and XSS protection, rate limiting, and a complete production security checklist.

5 lessons
Self-paced
~60 min/day
Free forever
Start Day 1 — Free → See what's covered
What you'll learn

Unsecured AI apps are a liability. Secure ones are a product.

AI apps handle sensitive prompts, user data, and expensive API calls. This course teaches you the security fundamentals every AI app needs before it goes live.

  • Issue and verify JWTs with proper expiry and middleware
  • Add Google OAuth 2.0 login with Passport.js in under an hour
  • Prevent CSRF attacks with SameSite cookies and CSRF tokens
  • Stop XSS attacks with DOMPurify, CSP headers, and helmet
  • Add rate limiting to protect your API keys and endpoints
  • Store secrets properly and pass the production security checklist
0
critical vulnerabilities shipped
5
practical lessons
$0
course cost
1
hardened AI app
5-Day Curriculum

Every lesson has a real exercise.
No theory without practice.

01
JWT Authentication — Issue, Verify, and Middleware
Build a complete JWT auth system: token issuance on login, verification middleware, expiry handling, and refresh tokens.
JWTAuth middlewareToken refresh
→
02
OAuth 2.0 — Google Login with Passport.js
Add Google OAuth 2.0 login to your Express app with Passport.js. Handle callbacks, sessions, and profile storage.
OAuth 2.0Passport.jsGoogle login
→
03
CSRF Protection — SameSite Cookies and CSRF Tokens
Understand CSRF attacks and prevent them with SameSite cookie configuration and double-submit CSRF token patterns.
CSRFSameSite cookiesCSRF tokens
→
04
XSS Prevention — DOMPurify, CSP, and Helmet
Stop cross-site scripting with input sanitization (DOMPurify), Content Security Policy headers, and the helmet middleware.
XSSDOMPurifyHelmet/CSP
→
05
Rate Limiting and Secrets — Production Hardening
Add rate limiting with express-rate-limit, store API keys in environment variables, and audit your app against the production security checklist.
Rate limitingSecrets managementSecurity checklist
→
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Your instructor
B
Bo Peng
Founder, Precision AI Academy

Kaggle Top 200 data scientist. Built and secured production AI applications for real clients. Trained 400+ developers. Security isn't optional for apps that handle real user data — this course gives you the baseline every AI app needs.

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