Based on Ethical Hacking . for social engineers and professionals . social engineering , sql injection , hacking wireless network , denial of service , break firewalls network , network and physical security , cryptography , steagnography and more interesting topics include them . Abhijeet Prakash (born 1995) is an Internet entrepreneur and Programmer . Abhijeet describes himself as an Ethical Hacker , and has written several topics on the computer security in his book . Abhijeet wrote unofficial guide to Ethical Hacking the age of 18 . He starting his computer security consultant services . In early life Abhijeet went to government school , kanpur .He later joined an undergraduate program in Bachelor of Science in Information technology at kanpur .