Secure Erasure: Difference between revisions
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Software is available that can retrieve files that have simply been removed from an index. In order to prevent recovery of files from media being disposed of it is necessary to either: |
Software is available that can retrieve files that have simply been removed from an index. In order to prevent recovery of files from media being disposed of it is necessary to either: |
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*physically destroy the media (can be simplest for removable media such as floppies, CD/DVD |
*physically destroy the media (can be simplest for removable media such as floppies, CD/DVD, SD cards) |
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*run a "secure erase" program over HDD/SSD |
*run a "secure erase" program over HDD/SSD |
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== Secure Erase == |
== Secure Erase == |
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Risk of Inadvertent Erasure |
<span style="color:#ef2108; background:#black">Risk of Inadvertent Erasure |
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In order to minimise the risk of inadvertently erasing wanted media: |
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*avoid installing erasure software to OS that are installed |
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*disconnect any HDD/SDD containing software and/or data that is to be retained |
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*boot a utility from USB/CD/DVD in order to run the erasure software |
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Well known utility systems that can be booted from external media and contain a thorough erasure app include: |
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*systemrescue CD |
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*parted magic |
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[[Category: Technical Info]] |
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Latest revision as of 02:45, 14 September 2016
Contrary to popular belief none of the following actions removes a file from storage media. Instead, these actions simply remove the file from an index:
- delete
- move
- (re)-format
Software is available that can retrieve files that have simply been removed from an index. In order to prevent recovery of files from media being disposed of it is necessary to either:
- physically destroy the media (can be simplest for removable media such as floppies, CD/DVD, SD cards)
- run a "secure erase" program over HDD/SSD
Secure Erase
Risk of Inadvertent Erasure
In order to minimise the risk of inadvertently erasing wanted media:
- avoid installing erasure software to OS that are installed
- disconnect any HDD/SDD containing software and/or data that is to be retained
- boot a utility from USB/CD/DVD in order to run the erasure software
Well known utility systems that can be booted from external media and contain a thorough erasure app include:
- systemrescue CD
- parted magic
