Computer forensics is the process of storing, identifying, extracting and recording valuable electronic data. The term was first used in the IACIS training course in 1991. Computer forensics has been used in law enforcement and military applications for a long time, and evidence can be collected from electronic resources. Today, it is increasingly used even in the corporate world. The increasing amount of electronic data created, stored and transmitted every day is the main reason.
Every second, thousands of pages of electronic data are being transmitted worldwide. During this process, data may be lost or changed. Computer forensics involves the use of special software tools and techniques to retrieve lost data. It is used to identify valuable data from personal computers or other electronic data storage devices. It can also be used to identify the leakage of sensitive data in the computer or any inherent defects in the system.
When documents are created electronically, they are stored in temporary files. Even if they are deleted or updated, some residues remain on the hard disk and can be recovered using special tools.
Computer forensics involves creating a backup of all data on the computer. This data is a mirror image of the entire hard disk and even contains temporary, deleted or changed files. Forensic experts create digital fingerprints of the original hard drive to ensure that it is not tampered with when retrieving data. Retrieve data from the image file instead of the original file so that the date stamp or other useful data is not changed. The retrieval process also displays historical information about the file, such as when the file was deleted or changed. The retrieved information can be converted into any desired format. Therefore, data recovery is divided into three stages: acquisition, analysis, and reporting.
There are many companies that provide computer forensics services. There are also many software tools with some useful options, such as cloning and disk imaging, file preview, picture library, etc. Forensic recycling can be carried out faster and more accurately.