• Bit-stream copy
– Bit-by-bit copy of the original storage medium
– Exact copy of the original disk
– Different from a simple backup copy
• Backup software only copy known files
• Backup software cannot copy deleted files, e-mail messages or recover file fragments
• Bit-stream image
– File containing the bit-stream copy of all data on a disk or partition
Also known as forensic copy
Hi-tech Investigation Unit
hi-tech@orioninv.co.th
http://www.orioninv.co.th/th/s_hitech1.html
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