Abstract: In the present day world. India has witnessed number of crimes with respect to computer and internet. The users of computer system and internet are increasing worldwide day by day and it is easy to access information easily within a few seconds. Cyber crime which is considered as illegal activity committed on the internet increasing day by day in spite of we are taking precautionary measures. In this paper I have discussed how cyber crime affects to the nation and the awareness and preventive measures by which one can overcome the threat.

Keywords: Cyber crime, precautionary measures