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Beyond Keywords

Written by DFM Team


Beyond Keywords

Keyword searching is the primary tool investigators use to identify relevant evidence in a data set. However, poorly chosen keywords can miss important items or return too many irrelevant results. As data volumes grow, investigators must find better ways to focus on the items of interest within very large data sets. In this article we explain how visualising communication networks, timelines, maps and links between data sources can rapidly establish key players, their locations and their involvement in a matter of interest, all supported by forensic artefacts required for provenance.

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Angus Marshall is an independent digital forensic practitioner, author and researcher

 

Coming up in the Next issue of Digital Forensics Magazine

Coming up in Issue 34 on sale from February 2018:


Device Forensics in the Internet of Things

As more businesses and consumers adopt IoT devices, privacy violations and cyber-attacks by malicious actors will become commonplace due to the insecure IoT infrastructure. Read More »

Data Destruction In Current Hard Disks & Data Destruction Techniques

Data destruction is a process traditionally applied using physical techniques, aiming at the completely destruction of the hard disk, however, there is an increasing interest in the use of logical techniques for data destruction, that allow reusing the physical device. Read More »

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Faster Searching For Known Illegal Content

Cryptographic (“MD5”) hash searching for known illegal material is one of the most thorough methods of digital forensic investigation. However, the technique is hampered by the ever-increasing size of media being examined, and the size of the hash list being searched. Read More »

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