by David Kovar of NetCerto, Inc. (www.netcerto.com)
Digital evidence needs to come from somewhere, right? It doesn’t appear, “forensically sound”, from out of the blue. And the phrase “forensically sound” is key – the evidence needs to be acquired in a manner that ensures that the process doesn’t modify the evidence in any manner. There are exceptions to this – cell phones and live acquisitions come to mind – but even then, the process should be minimally invasive.
The key to this acquisition process is the ubiquitous write blocker, probably the most important tool in any acquisition kit. A write blocker was my first forensics hardware purchase and I keep my collection of write blockers up to date religiously.
The differences between write blockers used to be fairly significant in terms of quality, speed, features, and price. In the last year or two the number of options has expanded somewhat, the major vendors all have similar features, and the prices have come down. The major difference appears to be in the layout, form factor, and physical design of the units...
Read more: http://www.forensicfocus.com/write-blocker-review-230709
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