Office 365 ((better)) — Revisionssichere Archivierung

Look for solutions that write data to AWS S3 Object Lock or Azure Blob Storage immutable vaults —not just a database flag. These are true WORM systems at the storage hardware level.

Your Office 365 admin should not be your archive admin. A third-party solution stores a separate, immutable copy of every email and file outside the direct control of the Microsoft 365 environment. This prevents an internal admin from covering tracks. revisionssichere archivierung office 365

Revision-Proof Archiving in Office 365: Separating Hype from Reality (and Legal Compliance) Look for solutions that write data to AWS

Third-party archives create tamper-proof audit logs of every search, export, and deletion request. Many also include digital signatures (hash values) per document to prove integrity over decades. Recommended Third-Party Solutions for German Compliance If you need GoBD, IDW PS 880, or GDPdU compliance, consider these established tools: A third-party solution stores a separate, immutable copy

For a true , you must deploy a certified third-party archiving solution that stores data in immutable, WORM-based storage, separates administrative roles, and generates legally defensible audit logs.