Acknowledgement

I would like to sincerely thank my friends, family and colleagues for the endless understanding, guidance and patience, and most importantly, the support and friendship during my studies. The mentorship of these people has been paramount in facilitating me a well-formed experience which has always provided unswerving guide in achieving my goals. They encouraged me to go further with all my projects and helped me groom into an independent thinker and a good student.

It is due to the humble efforts of my leaders and mentors that I have inculcated in me the confidence to develop my own individuality and sufficiency which enables me to perform the tasks with independence. In the course of completing this dissertation, I am also grateful to my co-workers and friends who provided me enough knowledge and entertainment and proved to be helpful in performing the huge research work. Besides this, the consistent guidance and assistance from my colleagues also gave me distinctive opportunities to gain a wider breadth of experience and undertake an extensive research work.

Finally, and most importantly, I extend sincere thanks to my family members, who provided utmost care and all the strength and encouragement. My faith and ambition has become stronger due to the prayers of my family who tolerated my temper and complains with patience. Without this unending support and encouragement, the completion of this enormous research work would not have been possible.

Abstract

This research paper discusses the issue of cyber crime in detail, including the types, methods and effects of cyber crimes on a network. In addition to this, the study explores network security in a holistic context, critically reviewing the effect and role of network security in reducing attacks in information systems that are connected to the internet. As, all this adversely affects the efficiency of information security of any kind of security that exists and is used in information systems. Since hackers and other offenders in the virtual world are trying to get the most reliable secret information at minimal cost through viruses and other forms of malicious soft-wares, then the problem of information security - the desire to confuse the attacker: Service information security provides him with incorrect information; the protection of computer information is trying to maximally isolate the database from outside tampering. In other words, the Internet is a large computer network, or a chain of computers that are connected together. This connectivity allows individuals to connect to countless other computers to gather and transmit information, messages, and data. Unfortunately, this connectivity also allows criminals to communicate with other criminals and with their victims.

Keywords: Security, Network Security, Computer, Privacy, Cyber Crimes.

Cybercrime: A threat to Network Security

Introduction

The advent of computers and the expansion of the Internet made likely the accomplishment of large improvement in research, surgery, expertise, and communication. Unfortunately, computers and the Internet have furthermore supplied a new natural environment for crime. As Janet Reno, U.S. advocate general throughout the Clinton management, put it, “While the Internet and other data technologies are conveying tremendous advantages to humanity, ...