Data remanence is the residual representation of digital data that remains even after attempts have been made to remove or erase the data. This residue may result from data being left intact by a nominal file deletion operation, by reformatting of storage media that does not remove data previously written to the media, or through physical properties of the storage media that allow previously written data to be recovered. Data remanence may make inadvertent disclosure of sensitive information possible should the storage media be released into an uncontrolled environment (e.g., thrown in the bin (trash) or lost).
Various techniques have been developed to counter data remanence. These techniques are classified as clearing, purging/sanitizing, or destruction. Specific methods include overwriting, degaussing, encryption, and media destruction.
Effective application of countermeasures can be complicated by several factors, including media that are inaccessible, media that cannot effectively be erased, advanced storage systems that maintain histories of data throughout the data's life cycle, and persistence of data in memory that is typically considered volatile.
Several standards exist for the secure removal of data and the elimination of data remanence.
Dataremanence is the residual representation of digital data that remains even after attempts have been made to remove or erase the data. This residue...
Remanence or remanent magnetization or residual magnetism is the magnetization left behind in a ferromagnetic material (such as iron) after an external...
publication Data remanenceData science Data set Data structure Data visualization Data warehouse Database Datasheet Data-driven programming Data-driven journalism...
Binary number Comparison of analog and digital recording Data (computer science) Dataremanence Digital architecture Digital art Digital control Digital...
magnetic remanence or remanent magnetization. Proper degaussing will ensure there is insufficient magnetic remanence to reconstruct the data. Erasure...
Peter Gutmann, Department of Computer Science, University of Auckland DataRemanence in Semiconductor Devices Archived 21 February 2007 at the Wayback Machine...
has since been extended to apply to computer files and the problem of dataremanence. In the context of government documents, redaction (also called sanitization)...
leaving some of the data intact. By accessing the entire hard drive, data erasure eliminates the risk of dataremanence. Data erasure can also bypass...
malicious or criminal investigative reasons. The attack relies on the dataremanence property of DRAM and SRAM to retrieve memory contents that remain readable...
Circuit Cellar. ISBN 978-0-07-010963-6. Gutmann, Peter (2001-08-15). "DataRemanence in Semiconductor Devices". 10th USENIX SECURITY SYMPOSIUM. IBM T. J...
sending sensitive data. This process partially (see dataremanence) protects law firms from potentially damaging leaking of sensitive data through electronic...
the new version of the expert-level data recovery app. Data recovery Dataremanence File deletion List of data recovery software Undeletion Cody Fink...
wide variety of readable personal and confidential information. See dataremanence. Physical loss is a serious problem. The US State Department, Department...
(predominantly found on external devices) and ReFS file systems. DataremanenceData recovery List of data recovery software File History Trash (computing) Undeletion...
to prevent forensic and reverse-engineering analysis based on DRAM dataremanence by effectively rendering various types of cold boot attacks ineffective...
future. Bad sectors are a threat to information security in the sense of dataremanence. Bad sectors can be "soft" (logical) or "hard" (hardware, physical)...
unreferenced data, but if the operating system has written new data over a deleted file then recovery will often not be possible. CCleaner Dataremanence List...
controversy; however, this may render the drive unusable. Data erasure Data recovery Dataremanence Drive mapping Comparison of file systems E.g., formatting...
recordings were overwritten, erased, or destroyed Data erasure, purging a computer file to counter dataremanence Degaussing of ships' hulls to guard against...
Document Publication TBA Purple NCSC-TG-025 Guide to Understanding DataRemanence in Automated Information Systems. September 1991 Forest Green NCSC-TG-026...
Meyer-Kahlen Shredding (dataremanence), overwriting storage media with new data to erase it Shredding (disassembling genomic data), in bioinformatics Shredder...
Security Science. Information security See esp. Computer security protecting data from unauthorized access, use, disclosure, destruction, modification, or...
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