API Attack & Defense
Interactive API security simulator: spot JWT verification bypasses, OAuth redirect_uri exploits, mass assignment, rate-limit bypasses, CORS misconfigurations, and webhook timing attacks across 6 production scenarios. Free, no signup.
Interactive API security lab. Six scenarios cover JWT algorithm confusion (RS256/HS256), OAuth redirect_uri startsWith bypasses, mass assignment / overposting via spread operators, rate-limit bypasses through X-Forwarded-For spoofing, CORS wildcard + credentials misconfigurations, and webhook signature timing side-channels.
What You Practice
- Recognizing production failure modes before they become incidents.
- Connecting security, reliability, and operational choices to real engineering outcomes.
- Building intuition through short interactive scenarios instead of passive reading only.
Related Practice
Continue with free courses or read production engineering articles.