Term Kind Topic What it is
Crypto-Shredding Cryptographic Erasure, Key Destruction Deletion, Per-Subject Encryption pattern Data Lifecycle & Retention Encrypting each data subject's personal data under a key unique to them, so that a deletion request is satisfied by destroying the key rather than by rewriting immutable or widely-replicated data.
Crypto-Shredding Cryptographic Erasure practice Data Lifecycle & Retention Making data permanently unreadable by destroying its encryption key, so immutable copies in backups and archives are erased without being modified.
Data Lifecycle practice Data Lifecycle & Retention Managing data from creation through tiering to deletion — the discipline that keeps storage cost and legal exposure bounded.
Hot, Warm and Cold Data concept Data Lifecycle & Retention Classifying data by how frequently and how urgently it is accessed, so each tier can be stored on media priced for that access pattern.
Identity-Record Separation Pseudonymous Subject Reference, Retention-Erasure Split pattern Data Lifecycle & Retention Holding regulated business records under a pseudonymous reference and the reference-to-person mapping in a separate governed store, so a retention obligation and an erasure right can both be satisfied.