Since their discovery, personal computers and computer networks to find professional help and laymen alike. Usage has increased several fold over the years. Such as the discovery of new, well maintained misuse. Even fostered abuse completely out of proportion. Cyber crime because it is called actually reach damaging levels. This includes destroying bank account via internet banking or debit card using the pilfered, phishing, account hacking, identity theft and data thefts.
This new branch is a new field slowly emerged from the study. The purpose of the branch of computer science is to determine the modus operandi of cyber thiefs and not just bring them to book, but to prevent such criminal activities in the future, with the right software and of course legislations.
Forensic approach and expert knowledge is mainly used to explain how tampered devices, such as computer systems, storage media, electronic documents (eg e-mail or JPEG). The scope of forensic analysis can vary from simple information recovery in reconstructing the series of events. Branch is defined as involving “the preservation, identification, extraction, documentation and interpretation of computer data”. Computer forensic techniques are supported by flexibility and extensive domain knowledge and often the culmination of hard work, easy to use and proven observation inferences.
Through applicable law, in India, the forensic evidence is subject to usual terms for digital information requires evidence to be true, reliably captured admissible.
Computer and forensic investigations usually follow the standard digital forensic process (acquisition, analysis and reporting). A number of techniques are used for computer forensic investigation such as valuation analysis of cross-drive, deleted files etc. The computer analysis of the operating system using custom forensics or existing sysadmin tools to extract evidence. A technique commonly used in computer forensics is the recovery of deleted files.
Although most often associated with the investigation of computer crimes, computer forensics can also be used in civil court. Discipline involves similar techniques and principles to data recovery, but with additional guidelines and practices designed to create a legal trail.
Evidence audit of computer forensic investigations typically experience the same principles and practices of other digital evidence. It is used in a number of high profile cases and became widely accepted as reliable in the U.S., Europe, and more recently, the Indian court system.