Cyber Security is a potential activity by which information and other communication and other communication system are protected from or defended against the unauthorized use or modification or exploitation or even theft .The types of cybercrime are Identity theft, Psychological tricks ,Social media frauds and mobile application frauds ,the most frequently heard in banking frauds . There are many causes of cyber crimes like cyber hoaxes, negligence, revenge or motivation, poor law enforcing bodies and cyber crime committed from publicity or recognition , social media player important role in cyber security. There are many act on Cyber Security like IT Act 2000(Cyber Stalking ) and many more.