Info On Data Forensics

August 22, 2009 · Filed Under IT Support Services · Comment 

Forensics is an ever evolving science with a lot of possibilities acquire deeper knowledge about by different forensics schools or forensics colleges.
With the ever increasing importance of computers and digital media for both personal and corporate users, the number of crimes involving electronic data is now higher than ever. Thus, only data forensics experts can search computers for electronic evidence, make digital investigations, recover lost data and provide technical expertise. To count only a few of the judicial cases for which data forensics is useful, we ought to mention breach of contract, intellectual property theft, discrimination, sexual harassment and so on. Therefore, it is not that difficult to understand why data forensics is so important in the legal system.

A normal type of computer investigation cannot detect or extract bits of information remained after deletion. File left-overs, deleted files, hidden and discarded files are searched and analyzed as part of the data forensics analysis. Although there are lots of challenges when trying to recover data or to identify the criminal process, experts in this fields have more than once been successful at finding the needle in the haystack. What is the relevance of such evidence for legal cases? Well, it has been proved by practice that even the course of a trial could be changed by the retrieval of deleted e-mail messages for instance.

Data forensics constantly needs to face apparently unsurmountable challenges. The applications do have far-reaching applications, but it takes hours to extract digital evidence and make it stable. Sometimes the extractor has difficulties in getting to the information that is buried too deep in the electronic system, or too exposed to destruction. Moreover, for a successful data collection, data forensics has to protect the extracted elements by duplication so that  the information is preserved and not altered and spoiled during the process. Great caution, strict standards and lots of skills are needed for each of these steps and only real pros can succeed.

When a criminal act involving digital systems is detected, the best way of action is not to address the other party and ask for a preservation of computer records, but rather a surgical approach by an expert in data forensics. This will enable the appropriate and cost-limited data collection in the best conditions possible. Moreover, it is false to assume that data forensics only applies to computer hard drives as the main systems that can store information; there are cases of criminal action involving, USB devices, CDs, DVDs and even voice mail systems. Memory hard drives are now incorporated even in fax and photocopy machines so that many of the documents can be recovered afterwards.