Topic 07
Privacy and deletion
What deleting your data really means, from the law to the backup tape.
Deleting your data is a legal right in many places, but backups are usually erased on a schedule rather than instantly, and some are locked so no one can delete them early.
Destroying the encryption key for a person's data is a recognised way to make every copy unreadable at once. Fail-safe defaults, the idea that systems should fall to the safe side, run through this group.
15 sources
What this topic rests on
- 1975The Protection of Information in Computer SystemsSaltzer JH, Schroeder MD · Proceedings of the IEEE 63(9):1278–1308Massachusetts Institute of TechnologyDesign principles
- 2016General Data Protection Regulation, Article 17: Right to erasureEuropean UnionEuropean UnionPrimary document
- 2016General Data Protection Regulation, Article 12(3): Time limits for responding to requestsEuropean UnionEuropean UnionPrimary document
- —Right to erasure (UK GDPR guidance)UK Information Commissioner's OfficeUnited KingdomPrimary document
- —Les durées de conservation des données (data retention periods)CNIL, French data protection authorityFrancePrimary document
- 2017Regulation on the Deletion, Destruction or Anonymization of Personal DataTurkish Personal Data Protection Authority (KVKK)TürkiyePrimary document
- —App Store Review Guidelines 5.1.1(v): Account sign-in and deletionAppleUnited StatesPrimary document
- —Data deletion on Google CloudGoogle CloudUnited StatesPrimary document
- 2025SP 800-88 Rev. 2: Guidelines for Media SanitizationU.S. National Institute of Standards and TechnologyUnited StatesPrimary document
- —Deleting an AWS KMS keyAmazon Web ServicesUnited StatesPrimary document
- —AWS Backup Vault LockAmazon Web ServicesUnited StatesPrimary document
- —Locking objects with Object LockAmazon Web ServicesUnited StatesPrimary document
- —Soft delete for Azure BackupMicrosoftUnited StatesPrimary document
- —Immutable vault for Azure BackupMicrosoftUnited StatesPrimary document
- 2020Guidelines 4/2019 on Article 25: Data Protection by Design and by DefaultEuropean Data Protection BoardEuropean UnionPrimary document
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