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Secure Delete

Data Management

Secure Storage Data Retention Data Erasure Data Destruction

Deletion method ensuring data is unrecoverable (e.g., cryptographic erase, overwrite, key destruction).

Definition

Secure deletion aims to make data unrecoverable by overwriting storage, destroying encryption keys (crypto erase), or sanitizing media. It must consider backups, replicas, and logs.

In plain English Deletion method ensuring data is unrecoverable (e.g., cryptographic erase, overwrite, key destruction).

Why this matters

Why it matters: Incomplete deletion can undermine privacy rights and increase breach exposure.

Example

Example: Encrypt disks by default, then perform key destruction for crypto-erase and verify deletion across backups per retention policy.