// Comparison

Hacking APIs vs Real-World Bug Hunting: Which Should You Read?

Two cybersecurity books on Web Security, compared honestly: who each is for, what each does best, and which to read first.

Intermediate

4/52022

Hacking APIs

Breaking Web Application Programming Interfaces

Corey J. Ball

Corey Ball's structured approach to attacking REST and GraphQL APIs: enumeration, auth flaws, business logic, mass assignment, and the testing harness around them.

Beginner

4/52019

Real-World Bug Hunting

A Field Guide to Web Hacking

Peter Yaworski

Peter Yaworski breaks down real disclosed reports across major bug bounty programs, organized by vulnerability class, so readers can pattern-match real findings rather than learn classes from textbook examples.

Read this if

Pentesters and bug bounty hunters who realized that most production attack surface is now API, not HTML. Ball's structured approach covers REST, GraphQL discovery, BOLA, mass assignment, JWT abuses, and the operational tooling around them.

Aspiring bug bounty hunters who want to learn the gap between knowing a bug class and finding one. Yaworski's annotated case studies are the closest thing to a textbook for what real disclosures look like.

Skip this if

Readers who want generalist web security; the book is API-focused and assumes you already understand OWASP-class web bugs.

Readers wanting a methodology playbook. The book is case-studies-organized-by-class, not workflow-organized; for the workflow side, read Bug Bounty Bootcamp.

Key takeaways

API attack surface is dramatically underexploited compared to HTML attack surface; for most public bug bounty programs, the API is where the bounties hide.
BOLA (broken object-level authorization) is the dominant API bug class and the one that pays best; Ball's framing is the cleanest in print.
Burp Suite Professional + Postman + a custom recon pipeline is the practical toolset; the book justifies the choice and shows you how to use them together.

Reading 30 annotated reports compresses what would otherwise take three months of HackerOne reading; the book is high-leverage for getting started.
The "what to do when you find something" chapter is the most underrated part; reporting is half the bounty, and most beginners write bad reports.
The classes covered (XSS, IDOR, SSRF, OAuth, race conditions, business logic) map directly to what's currently paying on public programs.

How they compare

Hacking APIs and Real-World Bug Hunting are both rated 4/5 in our catalog. Pick by topic preference and reading style rather than by rating.

Hacking APIs is pitched at intermediate level. Real-World Bug Hunting is pitched at beginner level. Read the easier one first if you're not yet comfortable with the topic.

Hacking APIs and Real-World Bug Hunting both cover Web Security, Offensive, so reading them in sequence reinforces the same material from different angles.

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