When you first hear about bug bounty hunting, it sounds like magic: find a security hole in a big company, report it, and get paid. But as soon as you look at a target like Google or Uber, that excitement usually turns into a question: "Where do I even start?"

The secret isn't a single magic tool. It's a methodology. It’s about having a repeatable system so you don't just click around randomly and get frustrated. Let’s break down how a successful hunt actually looks, without getting lost in 30KB of bullet points.

1. Recon: The Digital Detective Work

Most beginners want to start "hacking" immediately. They go straight to the login page and try common passwords. But the real hunters spend most of their time on Reconnaissance.

Think of a bug bounty target as a massive, dark territory. Recon is about turning on the lights and drawing a map.

You start by mapping the "attack surface." This means finding every subdomain (like dev.example.com or api.example.com), every hidden IP address, and every path the developer might have left behind.

I use tools like Subfinder or Assetfinder to find subdomains I didn't know existed. Then, I use something like FFUF to "fuzz" directories—brute-forcing common folder names like /admin, /api, or /.git—to see what pops up.

But don't ignore your own eyes. Manually reading the HTML and JavaScript source code of a page is often more valuable than any automated scan. Developers often leave clues in the code—hidden endpoints, commented-out form fields, or hints about how the system works.

2. Knowing What to Look For

Once you have your map, you need to know what a "vulnerability" actually looks like. There are hundreds of bug classes, but for beginners, four or five usually provide the most success:

  • XSS (Cross-Site Scripting): This happens when a site takes what you type and reflects it back without checking it. If you search for <script>alert(1)</script> and an alert box pops up, you've found a way to run code in other users' browsers.
  • SQL Injection: This is when you can trick the website's database. If you add a single quote (') to a URL parameter and the site gives you a database error, the door might be open.
  • IDOR (Insecure Direct Object Reference): This is a classic. If the URL says /user/profile?id=123, what happens if you change it to 124? If you see someone else's private info, that's a bug. It’s one of the simplest but highest-paying bugs out there.
  • Authentication & Access Control: Can you bypass the login? Can you reset someone else's password by changing the email in the request? These are "logic" bugs, and they usually go much deeper than just technical symbols.

3. Think in "Threat Models"

The best hunters don't just look for "bugs"—they think in threat models.

Instead of asking "Is there an XSS here?", they ask "Who is the attacker, who is the victim, and where is the trust being abused?"

For example, if you find a small, low-impact bug in a search bar, don't stop there. Can you use that small bug to steal an admin's cookie? Can you chain it with another bug to take over an account? In the bug bounty world, we call this vulnerability chaining, and it’s how you turn a $100 find into a $5,000 one.

4. The Specialist Advantage

It’s tempting to try to learn everything at once. You want to learn cloud security, mobile hacking, API testing, and hardware hacking all in the same week.

Don't.

Specialize first. Become the "IDOR person" or the "SSRF expert." When you focus on one bug class, you start to notice tiny details that others miss because they're too busy being generalists. Once you’re confident in one area, expand your "T-shaped" skillset.

5. It’s All About the Report

You could find the biggest bug in the world, but if you can't explain it, you won't get paid.

A professional report is concise and reproducible. It tells the team what you found, how it impacts them, and exactly how to see it for themselves. Use clear steps, screenshots, and keep it professional. A well-documented medium-severity bug often pays more than a "critical" bug that nobody can reproduce.

Conclusion

Bug bounty is a marathon, not a sprint. You will have weeks where you find nothing. That's normal.

The goal isn't just to "find a bug"; it's to build a process. Gather your intel, probe the likely spots, think creatively, and document everything. If you keep refining your methodology, the bounties will eventually follow.