Definition
Secure Data Deletion is the process of permanently destroying or removing information so that it cannot later be recovered.
Human Explanation
Deleting a file or emptying a recycle bin does not necessarily remove the data. Secure Data Deletion makes it unrecoverable.
Why it Matters
It reduces the Risk of confidential information being disclosed after its retention period ends or equipment is retired.
Conceptual Boundary
Secure Data Deletion is not ordinary file deletion. It uses appropriate methods to remove data from storage media and systems.
Practical Perspective
An organisation should define deletion rules according to legal and business requirements and the relevant level of Risk.