Ethical hacking, as the term itself proclaims loud and clear, is hacking that’s ethical and which gives authorized access to a computer system, an application or data. Ethical hackers, also known as “white hats”, perform assessments on systems and networks so as to help organizations improve their security posture. If you want to know complete guide to ethical hacking watch this video http://bit.ly/2VHgnGz or read this article https://hackercombat.com/knowledge-base/a-comprehensive-guide-to-ethical-hacking/