This book covers the topics under Cybercrime, Tools and Methods used, Injection, Attacks, Setting up a laboratory, Forensic Understanding, Legal Challenges and essentials of Cyber security. Cyber criminals may use computer technology to access personal information, business trade secrets or use the internet for exploitative or malicious purposes. Criminals can also use computers for communication and document or data storage. Criminals who perform these illegal activities are often referred to as hackers.