Data retention, explained
Data retention is the period and conditions under which information is kept before deletion or archival.
- The field
- Legal
- Reading time
- 1 minute
- In this entry
- Meaning · relevance · limits
The meaning
Data retention is the period and conditions under which information is kept before deletion or archival.
Why it matters
Useful policies separate billing, security events, account history, customer traffic and application data. Each category may serve a different purpose.
The boundary
A statement that some logs are absent does not show that every category of information is deleted immediately.
Give each record a purpose and lifetime
An application keeps operational logs for troubleshooting, invoices for accounting and database backups for recovery. These records need distinct retention rules and deletion paths. Removing a customer from the live database may leave their data in backups until those copies age out, so the retention schedule should explain that lifecycle.
- Inventory application logs, authentication history, invoices and backups separately.
- Test expiry and deletion; a written duration is not proof that every copy is removed on time.