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4th International Annual Workshop on Digital Forensics & Incident Analysis (WDFIA 2009)

4th International Annual Workshop on Digital Forensics & Incident Analysis (WDFIA 2009)
Athens, Greece, June 25-26, 2009
ISBN: 978-1-84102-230-7

Title: Reverse-Wipe Data on a Storage Medium
Author(s): Grigorios Fragkos
Reference: pp115-119
Keywords: Computer Forensics, Anti-Forensics, Data Wiping, File Headers
Abstract: This experimental study suggests an alternative method of data deletion which can be
considered secure up to an acceptable level for most purposes while maintaining anti-forensics
characteristics. It is a quick and “dirty” solution to remove data from a storage medium while
achieving to confuse the investigator about the contents of the i.e. the hard disk. More
specifically, working upon the file system of the storage medium it fills all the empty space
leaving no slack space available. Consequently, this approach could provide an insight today,
as in how it could be used as an anti-forensics method tomorrow.
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