Primary document · U.S. National Institute of Standards and Technology

SP 800-88 Rev. 2: Guidelines for Media Sanitization

What it says

Recognises 'cryptographic erase': destroying the keys that encrypt data, so every copy, including copies in backups, can no longer be read. It is far faster than wiping each copy.

A summary of a public document, not legal advice.

Cited in

  1. 01If I delete my data from an app, is it deleted from backups too?Eventually, but usually not at the same moment. EU and UK law require erasure without undue delay, and the UK regulator, the ICO, says backups count but may be put 'beyond use' until they are overwritten; Google Cloud commits to deleting customer data within about six months, and some backups are locked so that no one can delete them early.Privacy and deletion

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