This method is the preferred method since there is no chance to temper with data on the media during the imaging process.Dead imaging is when the digital media (that is to be imaged) has been powered off and will be imaged outside of its original computer.dead imaging is also discussed in the next few slides. As we explain the two types of imaging, the cases of using live vs.
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However, sometimes persistent data is stored using, for example, a full disk encryption solution and there is no access to the decryption key. Persistent data: This data remains intact after media is powered off.Volatile data: This data will be lost when media is disconnected from power.In general, we have two types of data for investigation:.It depends on the situation since each incident and the circumstances around it is unique. One of those is the type of data.
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The image is just a file which can be handled easily.Creating an exact copy of the original digital media that investigators can examine is commonly referred to as making a bitstream image or simply the imaging process.Therefore, the first step is to create an exact duplicate of the media to be examined.Working directly on the original evidence (e.g., hard disk of a computer) in any forensic data recovery operation or computer forensic investigation is not allowed as the investigation can make irrecoverable changes to the source data.
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