The Leanpub 60 Day 100% Happiness Guarantee
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
How to Make Money Hacking Ethically
With a Foreword written by HackerOne Co-Founders Michiel Prins and Jobert Abma, Web Hacking 101 is about the ethical exploration of software for security issues but learning to hack isn't always easy. With few exceptions, existing books are overly technical, only dedicate a single chapter to website vulnerabilies or don't include any real world examples. This book is different.
Using publicly disclosed vulnerabilities, Web Hacking 101 explains common web vulnerabilities and will show you how to start finding vulnerabilities and collecting bounties. With over 30 examples, the book covers topics like:
Each example includes a classification of the attack, a report link, the bounty paid, easy to understand description and key takeaways. After reading this book, your eyes will be opened to the wide array of vulnerabilities that exist and you'll likely never look at a website or API the same way.
I highly recommend Web Hacking 101. The $10 I paid was more than worth it when I got a $500 bounty from PayPal using examples Pete provided. Combined with the constant updates he provides, which I have access to for life, it's a great buy.

Danil Gribkov
@danilgribkov
I support Bounty Hunters, #reading Web Hacking 101: How to Make Money Hacking Ethically by @yaworsk #bugbounty - leanpub.com/web-hacking-101 --Twitter

Jason Haddix
Father, hacker, Director of Technical Operations @Bugcrowd, blogger, & nerd
Want to explore the art and skill of hacking? Try the latest release of @yaworsk's book! --Twitter

Michiel Prins
Co-Found of HackerOne
Anyone who's interested in web hacking and making money with it, I'd recommend reading this book: leanpub.com/web-hacking-101! #bugbounty --Twitter

Jobert Abma
Co-Founder of HackerOne
Worth to read (just bought my copy): How to Make Money Hacking Ethically by @yaworsk leanpub.com/web-hacking-101 #bugbounty --Twitter

Leo Niemelä
CSO at LocalTapiola Group
Awesome book written by @yaworsk. If for some reason you haven't read it yet make sure you do! --Twitter

Ben Sadeghipour
Bug Bounty participant. Blogger. Gamer.
Real-world case studies that helped me score a $600 "Hack The Pentagon" bounty. This book also gave me the confidence boost I needed to land a high paying job as a security engineer at a top aerospace defense company.

Jonathan Avery
Hacker
Superb work by @yaworsk in leanpub.com/web-hacking-101 I couldn't recommend it more, awesome writing style, you definitely should get it! --Twitter

@brutelogic
Security researcher @sucurisecurity
Web hacking 101 is an amazing beginners guide to breaking web applications as a bug bounty hunter. All sections of the book are backed up by references from actual publicly disclosed vulnerabilities. The focus on the unique findings for each category will more than likely teach some new tricks. It is well worth double the asking price.

Ebrietas
Pseudo hacker, information security lover, and bug bounty participant
I recommend "Web Hacking 101" about bug bounties and web security. Great book. Thank you @yaworsk leanpub.com/web-hacking-101 #bugbounty --Twitter

Andy Grunwald
Software Engineer (Site Reliability and Platform Engineering) at @trivago. I solve problems and put things into production.
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
We pay 80% royalties on purchases of $7.99 or more, and 80% royalties minus a 50 cent flat fee on purchases between $0.99 and $7.98. You earn $8 on a $10 sale, and $16 on a $20 sale. So, if we sell 5000 non-refunded copies of your book for $20, you'll earn $80,000.
(Yes, some authors have already earned much more than that on Leanpub.)
In fact, authors have earned over $15 million writing, publishing and selling on Leanpub.
If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).
Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.
Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.
Learn more about Leanpub's ebook formats and where to read them
You can use Leanpub to easily write, publish and sell in-progress and completed ebooks and online courses!
Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks.
Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. (Or, if you are producing your ebook your own way, you can even upload your own PDF and/or EPUB files and then publish with one click!) It really is that easy.