This work is not what most people would expect to read when they pick up a “hacking” book. Rather than showing the reader how to perform traditional penetration test attacks against networks and systems, we will be taking an unusual journey, intended to expand the mind of the reader and force them to see system and network security from a completely different perspective. Ninja Hacking provides the reader with a unique perspective of how to conduct unorthodox attacks against computing networks using disguise, espionage, stealth, and concealment. Many books on hacking discuss traditional methods used to gather information from corporate networks and systems. However, there are many infiltration techniques that are unconventional, which can yield greater access into a target network. By blending ancient practices of the Japanese ninja with current hacking methodologies, additional attack vectors can be realized. Ninja Hacking explores historical Ninjutsu techniques and relates them to realworld penetration tests and hacking efforts in a manner that expands the mindset, tools, and methods of information of security experts who are intent on covertly assaulting a target network.