Digital Forensic-The Digital Secrets
Digital forensic is a branch of forensic science and is defined as a process of obtaining, interpreting, and uncovering electronic data from electronic storage devices. The exponential growth in volume of data with wide variety of devices and formats has led to rise in the use of digital forensics. Before 30 years when criminals started becoming technical and it has been observed by law enforcement and military investigators of US government, they started investing in the field of computer forensic not only for examining the breaches but also to prevent the future breaches. This was the time when the field of information security and computer forensic are converged together for the noble and professional cause of security against the occurrence of cyber offenses. Till date the field of computer forensic is evolving with the same speed of digitisation. The first FBI regional computer forensics lab is established in the year 2000.
An American serial killer Dennis Lynn Rader killed ten people in the Wichita, Kansas metro area. In 2005 although Dennis had scrubbed old documents from the floppy disk, forensic computer investigators found buried “metadata” identifying Christ Lutheran Church and “Dennis” being the last user. An internet search revealed Dennis Rader was president of the church council. He arrested after his confession in the court and said, “A floppy killed me”.
Computer Forensics Examiner Stephen Marx found emails of the defendant Dr. Conrad Murray which he had sent hours before Michael Jackson died on June 25, 2009. Marx not only recovered critical timeline emails, but also discovered digital medical charts that are thought to be non-existent. But the key piece of evidence was a damaging audio recording of an impaired Michael Jackson reportedly made by Murray.
As far as the process of investigation of digital forensic is concern it is a three-fold process that includes preserving and recording the state of a digital device, such as a hard drive, mobile phone, network device or laptop, analysing the state of a digital device, and reporting on it to glean useful information.
Digital forensic is becoming very popular field with plenty of opportunity for advancement offering high medial salaries, job opportunities in a variety of sectors and a challenging fast faced work environment. There are many numbers of job designations and roles available. Chief information security officer, Forensic computer analyst, Information security analyst, Penetration tester, Security architecture, IT Security Engineer these are some of them. The only need to achieve the goal of becoming digital forensic investigator is to have certain skillset in you. The skillset may comprise technical aptitude, attention in detail, an understanding of law and criminal investigation, communication skills, Comprehension of cyber security fundamentals, analytical skills, a desire to learn, and ability to work with challenging material.
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