Due to the significance of Data, in this new age, its’ security has become a major issue in the I.T. industry. Cyber attacks from various sources are demanding its prevention in the new era of information security. Digital forensic is a relatively new fields that is the collection, analysis and documentation of a Cyber attacks. It is becoming increasingly important as criminals aggressively expand the use of technology in their enterprise of illegal activities. Digital forensics investigators have access to a wide variety of tools, both commercial and open source, which assist in the preservation and analysis of digital evidence. A small percentage of cyber criminals being convicted confirm the difficulty in detection of digital crime and its consequent procedural proving in the court of law. An established forensic analyst mines the crucial evidence from susceptible locations to comprehend attacker’s intension. The typical goal of an investigation is to collect evidence using generally acceptable methods in order to make the evidence is accepted and admitted on the court. Efficient digital Tools and procedures are needed to effectively search for, locate, and preserve all types of electronic evidence. Main focus of this paper is the complete investigation procedure of storage media. Our paper also explains emerging cyber crimes and its digital forensic investigation procedures using digital forensic tools and techniques.

Web applications are now part of day to day life due to their user friendly environment as well as advancement of technology to provide internet facilities, but these web applications brought lot of threats with them and these threats are continuously growing, one of the these threat is Cross Site Request Forgery(CSRF). CSRF attack is immerged as serious threat to web applications which based on the vulnerabilities present in the normal request response pattern of HTTP protocol. It is difficult to detect and hence it is present in most of the existing web applications. CSRF attack occurs when a malicious web site causes a user’s web browser to perform an unwanted action on a trusted site. It is listed in OWASP’s top ten Web Application attacks list. In this survey paper we will study CSRF attack, CSRF vulnerabilities and its defensive measures. We have compared various defense mechanisms to analyse the best defense mechanism. This study will help us to build strong and robust CSRF protection mechanism.