Microsoft 365 backup: what native tools do not cover

Overview

Microsoft operates shared responsibility: availability is strong; accidental deletion, ransomware, and long-term legal holds often need third-party backup.

Gaps to explain (without fear)

• Ransomware or malicious insider may purge recycle bins.
• Retention ≠ backup for fast granular restore scenarios.
• Cross-workload calendar restore nuances.

Partner positioning

Match backup product to RPO/RTO promises in MSA; test restores before marketing “full coverage.”

Legal

Some regulated clients require geographically distinct backup—verify vendor data residency.