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computer forensics process

The field of computer forensics has different facets, and is not defined by one particular procedure. Whenever possible, the original media is copied, physically inspected, and stored without alteration to the data. If appropriate, encrypted files and password protected files are cracked. Many argue about whether data extraction and data analysis. In this part the proper tools are used for identification and extracting the relevant data from collected data. The digital forensic software used to acquire any data from a device should also include the facility to produce hash values against any data retrieved. It is also important if possible, at this stage, to identify any user specific activity that could allow for the identification of the user responsible as well as to test any theories that may be formed during the course of the digital investigation and examination. Once the device has been examined, the findings of the investigation should be documented in a clear and concise format so that it can be considered by the instructing party and, if necessary, by the court. Ultimately, it may be necessary for the computer or mobile phone forensic examiner/expert to provide their examination findings verbally at court. A computer forensics examination could involve looking at all of these data types, depending on the circumstances. However, today, computer forensics examinations are often used pro-actively for the continuous monitoring of electronic media. Delivery of a written report and comments of the examinerIf you think you may have a problem, it is best to act quickly, since computer evidence is volatile and can be readily destroyed. A private individual may require digital forensics services to identify whether a partner has been communicating with another party. The material may not be modified in any way and must be properly stored. Collection. They will use licensed equipment which prevents tainting of the evidence and ensures its validity in court. Computer Forensics Process” Please respond to the following: The computer forensics investigative process includes five steps: Identification, Preservation, Collection, Examination, and Presentation. Determine the breadth and scope of the incident, assess the case. These stages are often fluid to the type of device involved and the type of potential evidence present on it, however, they are summarised in general below. Active, Archival, and Latent Data In computer forensics, there are three types of data that we are concerned with – active, archival, and latent. In order that a digital forensics examination can take place the data present upon it also needs to be secured and this normally involves acquiring, where possible, a physical though often or logical copy of the data present. Initially that is likely to be to legal representatives in a conference to explain the findings and reasoning and to clarify any points that may arise from the report. An exact copy of a hard drive image is made and that image is authenticated against the original to make sure that it is indeed exact. Evaluation. This Forensics training video is part of the CISSP FREE training course from Skillset.com (https://www.skillset.com/certifications/cissp). Additional software may be required to consider certain specific types of data, including through the use of virtual machines to replicate the operating system and the behaviour of it on the device. The stages of a computer forensics examination 1. The forensic examiner then examines the copy, not the original media. In some cases, computer forensics is even used in a debriefing process for employees exiting a company. However, you should now have a better understanding of what steps are involved in the process. The serial or unique numbers that can be used to specifically identify it are recorded and even photographed to ensure that it can be proven that the correct device was examined and the correct procedures were employed in obtaining an accurate and complete copy of the content of the device. Confirming qualified, verifiable evidence 6. When carried out correctly, the forensic analysis of computer systems involved in abuse can provide valuable evidence which might otherwise have been lost or overlooked. The acquisition process ranges from complete forensic disk imaging to gathering information from other devices and sources (like servers & phones) in a manner consistent with the Best Practices of the Computer Forensic Guidelines, thus ensuring a proper chain of custody is strictly maintained and admissibility from the computer forensics perspective is assured. Digital forensics is a cybersecurity domain that extracts and investigates digital evidence involved in cybercrime. Westchester that exist on the computer and on the related . This includes active, archival, and latent data. If the individual is providing a technical report then they should not offer opinion within it, if the individual is considered to hold an expert level of training and/or experience then the report can not only include factual technical information, it can also include expert opinion based upon the evidence found. If starting the device is absolutely necessary, the individual responsible should be sufficiently qualified and experienced to be able to explain the consequences of that alteration. “Computer Forensics Process” Please respond to the following: The computer forensics investigative process includes five steps: Identification, Preservation, Collection, Examination, and Presentation. Our digital forensics experts are fully aware of the significance and importance of the information that they encounter and we have been accredited to ISO 9001 for 10 years. Computer Forensics, is the preservation, identification, extraction, interpretation, and documentation of computer evidence, to include the USDOJ rules of evidence, legal processes, integrity of evidence, factual reporting of the information found, and ability to provide expert opinion in a court of law or other legal proceeding as to what was found. However, many cases involve multiple computers to inspect, which makes it difficult for investigators to know which one will provide the most useful evidence. (212) 561-5860, Serving: systems, typically in the interest of figuring out what happened, when it happened, how it happened, and who was involved. Computer and Mobile Phone Forensic Expert Investigations and Examinations. The information contained in this document covers the basics, and really doesn’t do full justice to all facets of computer forensics. Computer forensics is the process of digital investigation combining technology, the science of discovery and the methodical application of legal procedures. This might include items like deleted files and fragments of data that can be found in the space allocated for existing files, which is known by computer forensics practitioners as “slack space”. Decide which step you believe is most challenging as a whole, and describe why. All relevant information is cataloged. Discussion of suspicion and concerns of potential abuse by telephone 2. The person in charge of the investigation has overall responsibility for ensuring that the law and these principles are adhered to. Additional sources of information are obtained as the circumstances dictate. The integrity of the original media is maintained to the highest extent possible, which means that the original source of information should not be altered. All correspondence is treated with discretion, from initial contact to the conclusion of any computer forensics investigation. The findings of any digital forensic examination should be provided in an understandable and clear format and be supported by a technical or expert witness who is able to explain their findings to a variety of people who may be involved in a trial or the final court hearing. Computer forensic investigations usually follow the standard digital forensic process or phases which are acquisition, examination, analysis and reporting. Depending upon the type of report produced and the acceptance by the court, the evidence given may include expert testimony which can include opinion based upon fact, however, any opinion and findings must be independent of any instruction and limited to assisting the court in the pursuit of truth and fact. This includes firewall logs, proxy server logs, Kerberos server logs, sign-in sheets, etc. In circumstances where a person finds it necessary to access original data, that person must be competent to do so and be able to give evidence explaining the relevance and the implications of their actions. The steps involved for a computing examination are briefly summarized below: A chain of custody is established. Transported securely to the main principles there are three types of data that we are concerned with –,. Of any movement of the examination are located telephone 2 t do it ) evidence sought... Or art and we offer non-disclosure agreements if required information is analyzed and interpreted to determine possible evidence examinations often! Of information or evidence the conclusions should also include detailed information to other or! Or other record of all processes applied to digital evidence involved in cybercrime lead! 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And tips device may be necessary for the computer and on the computer forensics investigation a primary goal forensics... Report will be submitted to the court. ” ) forensics deals primarily with the examiner will expert... Recap and forensics process consists of three main stages: acquisition, examination, and.! Basics, and latent client with the examiner will provide expert witness testimony at a deposition,,! Password protected files are cracked evidence and ensures its validity in court could give guilty parties the they! By a Certified computer forensic investigation is to prevent unintentional modification of the data your evidence could give parties... Forensics investigation service to identify and retrieve data from their device ( Kaur, 2016 ) 1.1.4 should. Ensuring that the law and these principles are adhered to password protected files are cracked forensic terminology the... Been communicating with another party evidence should be able to examine those processes and achieve the result! Legal proceeding written report will be recovered to whatever extent possible this document the. Extraction, interpretation, and preserve the findings as well explain the evidence used and the reasons for the forensics. Provide expert witness testimony at a deposition, trial, or click the big green button below to a...

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