CoreView One - The Global Leader in Microsoft 365 Tenant Resilience and Management

Modern attackers don't break into Microsoft 365, they log in and reconfigure it. When configurations are lost, tampered with, or drift over time, recovery means weeks of manual rebuild or worse, the attacker's foothold riding back in after you think you're clean.

True Microsoft 365 resilience means knowing the exact state of your tenant at any moment, catching changes before they cause damage, and restoring the full operating environment in minutes rather than weeks. CoreView is the only platform that covers all three, hardening, detecting, and recovering tenant configuration with unified visibility across single tenants, multiple tenants, or hybrid environments spanning Microsoft 365 and on-premises infrastructure.

1. Harden before the attack: CoreView continuously checks every corner of your Microsoft 365 tenant against security best practices, flagging and fixing dangerous app permissions, missing MFA, legacy authentication, and oversharing risks across 8,500+ configuration settings before attackers exploit them.

2. Catch the change the second it happens: CoreView takes a snapshot of your tenant configuration and alerts you the moment any setting changes, with a clear record of who changed what, when, and from which admin center. Whether it's configuration drift, an accidental change, or something more deliberate, you know about it before it becomes a crisis.

3. Undo the attack, restore in minutes: Standard backup tools restore your files and mailboxes, not your tenant. CoreView restores the full configuration that makes Microsoft 365 work, policies, identities, app permissions, and sharing settings, to a known-good state in minutes, whether into the same tenant or a new, isolated one.

4. Shrink the blast radius: In Microsoft 365, one compromised admin account can reach every user, mailbox, file, and app in your organization. CoreView replaces that all-or-nothing admin model with scoped, delegated administration, so a single mistake or compromised account can't take down everything. No separate tenant required.