Chapter 9 of 10 · Web Security Basics 90%

🎯 British Airways lost 380,000 payment cards to a single XSS-style injection on their checkout page in 2018

XSS, SQLi, CSRF, SSRF: these four letters keep appearing in every breach report. You'll map the major vulnerability classes, see minimal examples, and build the checklist you carry into every engagement. 🗺️

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Web Security Basics

🎯 British Airways lost 380,000 payment cards to a single XSS-style injection on their checkout page in 2018

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HTTP requests and responses

URLs, domains, and DNS

HTML and the browser

Cookies and sessions

Authentication mechanisms

HTTPS and TLS

Same-origin policy and CORS

HTTP security headers

Common web vulnerabilities

Browser DevTools for recon