Difference between revisions of "Residual Data"

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=See Also=
 
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* [[Residual Data on Used Equipment]]
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* [[Residual Data in Document Files]]
 
* [[Sanitizing Tools]]
 
* [[Sanitizing Tools]]
 
* [[Remnant Data]]
 
* [[Remnant Data]]
* [http://www.iphoneatlas.com/2008/05/19/refurbished-iphones-may-contain-other-users-personal-data/ Remnant data on iPhones]
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* [http://www.iphoneatlas.com/2008/05/19/refurbished-iphones-may-contain-other-users-personal-data/ Residual data on iPhones]

Latest revision as of 00:23, 10 December 2009

Residual Data is data that is unintentionally left behind on computer media. In forensic usage, remnant data is typically left behind after attempts have been made to delete the data, after the data has been forgotten, or after the media on which the data resides has been decomissioned.

Residual data appears at all levels of modern computer systems:

  • Computer systems that are discarded.
  • Partitions in hard drives that are deleted.
  • Files on hard drives that are deleted but not overwritten.
  • Snippets of text in Microsoft Word files.
  • Heap variables that are freed with free()
  • Automatic variables left on the stack of languages like C or garbage collected in languages like Java.

Papers

Byers, Simon. Scalable Exploitation of, and Responses to Information Leakage Through Hidden Data in Published Documents, AT&T Research, April 2003

Chow, J., B. Pfaff, T. Garfinkel, K. Christopher, M. Rosenblum, Understanding Data Lifetime via Whole System Simulation, Proceedings of the 13th USENIX Security Symposium, 2004.

Garfinkel, S. and Shelat, A., "Remembrance of Data Passed: A Study of Disk Sanitization Practices," IEEE Security and Privacy, January/February 2003.

See Also