Preface

Mobile devices, Wireless Networks and modern Gadgets have become ubiquitous in today’s world. Millions of people use them worldwide every day at their homes, offices, and public hotspots to log on to the internet and do both personal and professional work.

Insecure communication channel have been exploited by “Offensive Sniffer” to break into companies, banks and government organizations.

Most of the Administrator, Security Engineer and Security Architect are still clueless on how to secure communication channel in robust and foolproof way.

This is the first version of my article named HOS v 2.0 and titled as “Offensive Sniffing for Defensive Purpose”.

I have tried to explain in a very simple way what sniffers are, how they work, method of detecting sniffers, various sniffing tools and finally how to protect against sniffers. We have chosen Kali 2018 and Ubuntu 18 LTS as the platform to test all communication channel in this book.