Network Forensics

What Does Network Forensics Mean?

Network forensics refers to investigations that obtain and analyze information about a network or network events. It is a specialized category within the more general field of digital forensics, which applies to all kinds of IT data investigations. Typically, network forensics refers to the specific network analysis that follows security attacks or other types of cybercrimes.


Techopedia Explains Network Forensics

Network forensics methods vary widely. Some investigations monitor all traffic on a network, while others use more specific and targeted observations. An easy way to to understand some types of network forensics is by comparing them to law enforcement vehicle checkpoints, where network forensics investigators may analyze all of the traffic going through a certain point of a network. Other kinds of network forensics may involve the broader capture and storage of network information. Some experts separate network forensics into two categories based on either of the following methodologies: a catch-it-as-you-can or stop-look-listen method that treats a large amount of data with a cursory type of routine inspection.

Those pursuing network forensics may seek to establish digital time lines for network events and collect other kinds of network usage facts, including IP addresses and encrypted/unencrypted messaging. In some cases, privacy laws and other types of legal restrictions apply to these investigations.


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Margaret Rouse

Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…