Every week, ordinary developers get paid by companies like Google, Microsoft and Shopify — not for building software, but for breaking it and reporting how. That is bug bounty hunting: a company invites independent researchers to test its systems, and pays a reward (a "bounty") for every genuine security flaw reported before a criminal finds it. Payouts range from fifty dollars for a minor issue to six figures for a critical one, and the work is legal, remote and open to anyone with the skills. This guide covers exactly how to start: what to learn first, which tools matter, where to hunt, and how to avoid the mistakes that end most beginners' journeys in the first month.

The short version

  • Learn how the web works first — HTTP, cookies, sessions and APIs. Most paid bugs are web bugs.
  • Your core tool is an intercepting proxy: Burp Suite (the free Community edition is enough to start).
  • Hunt on established platforms — HackerOne, Bugcrowd and Intigriti — and only inside a programme's written scope.
  • Beginners get paid for logic flaws (IDOR, broken access control, XSS), not movie-style zero-days.
  • A clear, reproducible report is worth more than a dramatic one. Severity is judged on proven impact.

Step 1: Learn how the web actually works

Bug bounty is applied web security. Before touching any tool, you need a working mental model of a web application: how a browser talks to a server over HTTP, what headers and cookies do, how login sessions survive between requests, what an API is, and how databases sit behind it all. You do not need a computer science degree — plenty of top hunters are self-taught — but you do need this foundation, because almost every beginner-friendly bug is a place where the application trusted the browser when it should not have.

From there, study the vulnerability classes that make up the OWASP Top 10: broken access control, injection, cross-site scripting (XSS), server-side request forgery (SSRF) and security misconfiguration. Our guides to API security flaws and how vulnerabilities are catalogued are good next reads once the basics click.

Step 2: Set up your toolkit

The professional toolkit is smaller than you expect:

  • Burp Suite — intercepts your browser's traffic so you can inspect and modify requests. This is where you will spend 90% of your time.
  • A dedicated browser profile — one browser, one test account (ideally two accounts, so you can test what one user can do to another).
  • Recon tools — Nmap for network scanning, plus subdomain enumeration tools to map a target's attack surface.
  • Notes — a simple document per target: endpoints found, parameters seen, ideas to test. Hunters who take notes find bugs; hunters who click randomly find duplicates.

Free practice labs exist precisely for this stage. PortSwigger's Web Security Academy teaches every major bug class in hands-on labs, and platforms like Hack The Box and TryHackMe give you legal machines to attack. Practise there until the workflow feels boring — then real targets will feel familiar.

Step 3: Pick your first programme

Create accounts on HackerOne and Bugcrowd and read programme pages carefully. As a beginner, look for:

  • A wide scope — "*.example.com" gives you far more surface than a single login page.
  • A public programme with a response record — check how fast they reply and whether they actually pay.
  • A product you already use — you will spot weird behaviour in an app you know far faster than in a stranger's.

The scope page is a legal boundary, not a suggestion. Testing outside it — even with good intentions — can get you banned or worse. The same goes for rate limits and rules about automated scanning: read them, every time, before sending a single request.

Step 4: Hunt the bugs beginners actually get paid for

Forget remote code execution for now. The bugs that pay beginners are logic flaws — places where the app fails to check who you are or what you own:

  • IDOR / broken access control — change an ID in a request (an invoice number, a profile ID) and see whether the app shows you someone else's data.
  • Stored and reflected XSS — put a script payload anywhere text is saved or echoed, and see if it runs in another user's browser.
  • Business-logic abuse — negative quantities, reused coupons, skipping a payment step in the checkout flow.
  • Information disclosure — exposed error messages, public backup files, API responses returning more fields than the screen shows.

Work one target deeply instead of skimming ten. Map every feature, create two accounts, and test what each account can do to the other. Depth is the entire strategy.

Step 5: Write reports that get paid

A bounty is awarded for a report, not for a bug. Triage teams pay for clarity: a precise title ("IDOR in /api/invoices lets any user read other customers' invoices"), step-by-step reproduction a stranger can follow, screenshots or a short video, and an honest impact statement — what data, whose data, how much. Never inflate severity, and never actually extract other people's data to "prove" a point; showing access with your own second account is proof enough.

Expect duplicates. If your bug was already reported, the report is closed without pay — it is the normal cost of the game, and your notes from that target still compound. Most hunters who earn consistently say the same thing: the first valid bug took months, and everything after it came faster.

The honest expectations

Bug bounty is a skill business, not a lottery. Treat the first three months as training, measure yourself by valid reports rather than money, and keep learning in public — write-ups of disclosed bugs on HackerOne's Hacktivity feed are a free masterclass. Pair the hunting with structured study and the curve flattens fast: that is exactly why we built our Bug Bounty Course from Scratch, which walks the full path from web fundamentals to your first submitted report.