Cyber criminals have new tools at their disposal and are becoming more adaptive than ever. In the present scenario, advent of technological revolution has given broader opportunities and scope to Internet users, but at the same time this has led to the global high-tech cyber crime. India is rated in the top 5 countries affected by cyber crimes, which are gaining momentum from simple e-mail type of crime to serious crime like hacking, phishing, vishing, source code theft, cyber staking, Internet time theft, web jacking and cross-site scripting. Internet has acted as an alternate avenue for the criminals to conduct their activities and launch attacks with relative obscurity. Nowadays, cyber criminals are targeting the social and professional networks and threats are directed at the mobile platforms like smartphones and tablets. Traces of illegal digital activities are often buried in large volumes of data, which are hard to inspect with the aim of detecting offences and collecting evidence. In this paper, an attempt has been made towards evolution of cyber crime, its detection and challenges ahead. The paper also sheds light on the present status of cyber crime, steps taken by the government organizations to avoid cyber crime and also upon international accordance and solutions to deal with the same.

Internet has become an essential means for day-to-day life. With the booming new technological developments, Internet has now emerged as a parallel form of life because of its openness to exploration. As a result, privacy of information is easily breached due to insufficient rules and regulations. Among E-frauds, obscenity, defamation, forgery, criminal intimidation and slander have spread rapidly. Cyber crime deals with the crimes related to computer world. It includes the crime in which a computer is involved in one way or other.

The major cyber crimes reported are denial of services, defacement of websites, spam, computer virus, worms, pornography, cyber squatting, cyber stalking, phishing, etc., and a majority of cyber crimes are centered on forgery, fraud and phishing. After the US and UK, India is the next most targeted country by cyber criminals. Social networks and e-commerce sites are major targets to achieve this purpose. In 2010, 6.9 million bot-infected systems and 14,348 cases of website defacement were found. During the year 2011, 6,850 .in and 4150 .com domains were defaced, 15000 websites were hacked, and India has been found to be the topmost country for generating spamming.

Information Technology Journal, Cyber attack, Hacking, Phishing, Vishing, Cyber stalking, Cyber crime, Cyber law, Information technology, National Security.