Zero365 · Microsoft 365 Backup

Your Microsoft 365 data, your repository.

Zero365 backs up Exchange, OneDrive, SharePoint, Teams, and Entra ID into the repository you choose — with workload-aware explorer, selective restore, and delta-first sync. Enterprise-grade protection without vendor lock-in.

Microsoft 365 Source tenant
Zero365 Protection engine
Your repository Destination

5

M365 workloads

BYOR

Your repository, your control

Delta-first

Incremental sync

Granular

Item-level restore

What Zero365 protects

Five workloads. One recovery-ready platform.

Zero365 connects to your Microsoft 365 tenant through Microsoft Graph and backs up each workload with its own semantics — not as a flat file dump.

Exchange Online

Mail, calendar, contacts, tasks

Every mailbox, every message — backed up and searchable

Primary and shared mailboxes, calendars, contacts, and tasks — captured with full MIME fidelity and delta sync. Restore individual items to their original location or an alternative mailbox, export as EML or ZIP, and preview before committing. Non-destructive by default: existing items stay untouched.

OneDrive

Files, folders, permissions

Files, versions, and permissions — intact

Drive hierarchy with delta-first sync, point-in-time restore, and ACL/permission recovery. In a ransomware scenario, the restore-only-if-hash-differs mode recovers only what actually changed — surgical recovery instead of a full rollback.

SharePoint Online

Document libraries & lists

Document libraries and structured lists — not just files

Zero365 backs up both document libraries and list-backed structured content, including custom column values. Restore items with their metadata to the original site or an alternative location. SharePoint ransomware recovery uses the same hash-based differential mode as OneDrive.

Microsoft Teams

Channels & chat messages

Channels and chats — captured honestly

Standard, private, and shared channels plus 1:1 and group chats. Because Microsoft Graph does not allow writing messages back into live channels, Zero365 restores Teams data as structured export bundles — JSON messages with manifests, downloadable through the app. We don't claim live replay because the API doesn't support it.

Entra ID

Users, groups, apps

Identity objects — recoverable three ways

Users, groups, applications, and service principals with membership and ownership. Three restore paths: soft-delete recovery within 30 days, full object recreation with a new ID, or property replay via PATCH. Group membership is restored add-only. Conditional access policies and license assignments are deferred to a future release — we state the boundary clearly.

How it works

Connect your tenant. Back up to your repository. Restore when you need to.

Zero365 connects to Microsoft 365, runs scheduled backups automatically, and stores encrypted copies in the repository you choose. When something goes wrong, browse your backups in the console and restore exactly what you need — a mailbox, a file, or a site.

  • Customer-chosen repository (S3, Azure Blob, GCS, SFTP, WebDAV)
  • Encrypted backups with keys you control
  • Preview before every restore
Specifications

Built for production.

Service Cloud backup service with a web console — connect your tenant, set policies, and manage restores without running your own backup infrastructure.
Workloads Exchange Online, OneDrive, SharePoint Online, Microsoft Teams, and Entra ID — each backed up with workload-aware restore flows.
Repository (BYOR) Bring your own repository: AWS S3, Cloudflare R2, Azure Blob, Google Cloud Storage, SFTP, WebDAV, or local filesystem. Encrypted backups stay in accounts you control.
Restore Browse backups by workload, search for items, preview changes, and restore mail, files, sites, or identity objects — individually or in bulk.
Cloud support Global commercial Microsoft 365 and Entra ID.
Security Role-based access, SSO (SAML/OIDC), MFA, audit logging, and SIEM export. Separation of duties and just-in-time restore access.
Get started

Stop hoping your M365 data is safe. Start knowing.

Connect your tenant, choose your repository, and see your first backup run. Zero365 protects what Microsoft's native retention doesn't.

FAQ

Zero365 questions, answered.

What does "Bring Your Own Repository" mean?

You choose where your backup data is stored — S3, Azure Blob, Google Cloud Storage, SFTP, WebDAV, or even a local filesystem. Zero365 writes encrypted payload into your repository through Kopia. Your data never sits on our infrastructure unless you choose to host it there.

Can Zero365 restore Teams messages back into a live channel?

No — and we don't claim otherwise. Microsoft Graph does not allow writing messages back into Teams channels. Zero365 restores Teams data as structured export bundles (JSON with manifests), downloadable through the application. This is an honest reflection of the current API limitation.

How is Zero365 different from Veeam Backup for Microsoft 365?

Zero365 is a standalone SaaS product with a BYOR model — you pick the repository backend and control the encryption keys. It uses Microsoft Graph exclusively (no legacy APIs), provides workload-aware restore semantics for each M365 service, and runs as a containerized platform. Veeam's product has its own architecture and repository model — both are valid approaches for different operational preferences.

Which Microsoft 365 clouds are supported?

Global commercial Microsoft 365 and Entra ID are supported.

How does ransomware recovery work for OneDrive and SharePoint?

Zero365 offers a restore-only-if-hash-differs mode for OneDrive and SharePoint. Instead of rolling back everything, it compares file hashes and restores only the items that were actually changed by the attack — surgical recovery that preserves legitimate recent work.

Contact

Let's talk backup

Talk to our team about backup security, Veeam backup monitoring, ransomware recovery validation, technical advisory, backup penetration testing, pricing, or a live demo of BackupSec.

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