Understanding TCP/IP, HTTP/HTTPS protocols, DNS, cookies, sessions, and how data flows between client and server is non-negotiable.
Explain what the vulnerability is and what components are affected.
A bug isn't worth anything if you can't explain it. A professional report includes: bug bounty masterclass tutorial
Before hacking anything, understand the legal boundaries. All legitimate bug bounty hunting occurs within defined scopes — specific domains, applications, or IP ranges that companies explicitly permit testing on. Testing outside scope is illegal and could result in criminal charges.
httpx -l subs.txt -o alive.txt
While automated scanners can find low-hanging fruit, a "Master" focuses on manual exploration.
: Triaging and payouts take time. Maintain a polite, professional tone when communicating with security teams. httpx -l subs
Making the server request internal resources it shouldn't access.
: Use Subfinder or Amass to find active subdomains. Before you touch a keyboard
Run full recon on your chosen target, document all endpoints. Week 6: Manual test for IDOR on all API endpoints. Week 7: Test for XSS on all user-input parameters. Week 8: Submit first reports (even low-severity findings matter).
Before you touch a keyboard, you need the right foundation. Knowing how to break things is useless if you don't know how they are built.