A comprehensive and growing textbook on topics in information security built by students at the National University of Singapore as part of the NUS Greyhats security interest group.

It was started as a project by Jeremy Heng (@nn_amon) as an effort to create a taxonomy of hacking knowledge.

This book was designed as a sort of encyclopedia containing an in-depth guide to hacking techiques useful for, primarily, capture-the-flag competitions as well as some real life applications.

Feel free to skip to sections that pique your interest. They are intended to be separately understandable for a sufficiently advanced reader. New readers are advised to cover the basics in the earlier chapters before moving onto the later ones.

These people have contributed to the guide:

• Jeremy Heng (amon)

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.