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85% of All Crimes Leaves a Digital Fingerprint

Submitted by on July 26, 2010 – 5:41 AM

It has been stated that 85% of all crime leaves a digital fingerprint in electronic devices. This may occur from an Internet intrusion, identity theft and traditional crime like murder. Computer forensics has aided in the investigation of these crimes. Computer Forensics is the use of specialized techniques for recovery, authentication, and analysis of electronic data when a case involves issues relating to reconstruction of computer usage, examination of residual data, authentication of data by technical analysis or explanation of technical features of data and computer usage. Computer forensics requires specialized expertise that goes beyond normal data collection and preservation techniques available to end-users or system support personnel. The challenges facing many computer forensics examiners are an abundant of data that must be analyzed to produce a story or show correlation. Hard disk space is enormous and continues to grow. Hard disk space is inexpensive thus allow for more. In conjunction, RAID systems also provide additional challenges for the investigator. A simple case on a 200 GB hard drive can take weeks to review alone before any real assessment can occur. Issues such as terrorism and murder cases can prove to be fatal. By including Social network analysis (SNA), the time to locate correlation will be reduced. This will assist the examiner to focus his analysis on key area from the SNA results.

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