Governing Microsoft Copilot in Your Toronto Business: What IT Leaders Need to Know
Microsoft Copilot can access every file a user has permission to see - which means misconfigured SharePoint permissions become an AI risk. This guide explains the specific governance steps Toronto IT leaders need to take before and after Copilot deployment.
Governing Microsoft Copilot in Your Toronto Business: What IT Leaders Need to Know
Microsoft Copilot for Microsoft 365 is the most widely deployed enterprise AI tool in the GTA. If your organization has Microsoft 365 Business Premium or E3/E5 licences, Copilot is either already available or a licence upgrade away.
The pitch is compelling: Copilot drafts emails, summarizes long documents, generates meeting notes, writes code, and answers questions about your organization's own content. For many GTA businesses, the productivity gains are real.
This guide explains precisely what Copilot can access, what goes wrong when permissions are misconfigured, and what governance steps Toronto IT leaders should take before and after Copilot deployment.
Microsoft Copilot for Microsoft 365 uses your organization's Microsoft Graph to retrieve relevant content when answering prompts. In practical terms, this means Copilot can access:
Everything in SharePoint and OneDrive that the user has permission to view All emails and calendar events in the user's Exchange mailbox All Teams chats and meeting recordings the user has access to All documents the user has recently worked on across Microsoft 365
Copilot does not create new access. It uses existing permissions. But "existing permissions" is the problem.
Most GTA organizations that deployed SharePoint and OneDrive over the past 5 to 10 years did so without anticipating that a powerful AI assistant would one day be able to surface any document a user has permission to see. Permissions crept over time - files shared broadly for one-time projects were never restricted back, site-wide read access was granted for convenience and never reviewed, former employees' OneDrive content was migrated without permission cleanup.
When Copilot is added to this environment, it can surface documents that users technically have permission to access but would never have thought to look for - including confidential HR records, executive compensation documents, legal advice files, and client data from other departments.