June 2012
Intermediate to advanced
576 pages
19h 10m
English
Content preview from Network Forensics: Tracking Hackers through CyberspaceBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 3. Evidence Acquisition
“Some things are hurrying into existence, and others are hurrying out of it; and of that which is coming into existence part is already extinguished . . . In this flowing stream then, on which there is no abiding, what is there of the things which hurry by on which a man would set a high price?”
—The Meditations, by Marcus Aurelius1
Ideally, we would like to obtain perfect-fidelity evidence, with zero impact on the environment. For copper wires, this would mean only observing changes in voltages without ever modifying them. For fiber cables, this would mean observing the quanta without ever injecting any. For radio frequency, this would mean observing RF waves without ever emitting any. In the real world, this ...
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