A SharePoint permissions review for Microsoft 365 Copilot is a practical step before employees begin using Copilot with work content. Copilot does not replace SharePoint’s access controls. The concern is that employees may already have access to files and sites that were shared too broadly, and Copilot can make that existing content easier to discover.
The goal is to confirm that each person’s access is intentional, not to hide every useful document. Review permissions at each level, correct access where needed, and use discovery controls only as an additional safeguard. Microsoft’s SharePoint guidance for Copilot readiness is a helpful companion to this checklist.
Start with site and group membership
Begin with the people and groups who can access each site. Site membership may include current employees, project teams, department groups, or other groups whose membership changes over time. Look for access that no longer matches someone’s role or the site’s purpose.
- Confirm that site owners are still responsible for the content and membership.
- Review members and visitors, including group memberships that grant access indirectly.
- Check whether broad internal groups have access to sites containing confidential or limited-audience content.
- Remove former team members and review temporary access that may have become permanent.
- Ask site owners to confirm that each group still needs the access it receives.
Check the effective access a person receives, not only the names shown in a site’s membership list. Microsoft 365 groups and security groups can provide access through group membership, so a user may have permissions without being added individually to the site.
Review libraries and permission inheritance
SharePoint permissions can be inherited from a site, or set differently for a library, folder, or individual file. A library that inherits site permissions may be available to everyone with site access. A separate permission assignment can narrow or widen access for specific content.
Review libraries that hold sensitive, confidential, or restricted material. Confirm who can open them and whether the library’s permissions should match the broader site. Pay particular attention to libraries created for a specific department or project that may now have a wider membership than intended.
Permission inheritance changes can make access harder to understand. Microsoft’s guidance on managing SharePoint permission scopes can help administrators review where permissions are set separately rather than inherited.
Check unique permissions on folders and files
Do not stop at site and library membership. Individual folders or files may have unique permissions that differ from their parent location. These permissions can be easy to overlook when content has been moved, shared for a short-term task, or retained after a project ends.
- Identify folders and files with unique permissions, especially in sensitive libraries.
- Confirm that each person or group listed still needs access to that specific content.
- Look for one-off grants that were created for an old project or temporary collaboration.
- Where practical, simplify permissions by returning content to the intended inherited access model.
Changing permissions can affect how people work, so confirm the business need with the content owner before removing access. If a file has a legitimate need for narrower access, document who should have it and keep that permission assignment under review.
Inspect sharing links and external access
Review both the sharing settings available to users and the links already created. A link’s audience matters: a link may be limited to specific people, available to people in the organization, or available to anyone who has the link. The link type and its intended audience help determine who may be able to open the content.
Check whether existing links still serve a business purpose, whether their recipients are appropriate, and whether the link’s audience is broader than necessary. Do not assume that a link is harmless simply because it was created for a specific task. Also, do not assume that every link grants access to every employee: access depends on the link’s settings and the person’s eligibility to use it.
Review guest access separately. Confirm that external guests still need access, that their access is limited to the relevant sites or files, and that old collaboration arrangements have not left content open longer than intended. Microsoft’s SharePoint and OneDrive sharing settings guidance explains the controls administrators can review for external sharing.
Know what discovery controls do
Restricted Access Control and Restricted Content Discovery address different concerns. Neither replaces a permissions review or fixes incorrect access by itself.
Restricted Access Control limits who can access a site
Restricted Access Control can limit site access to people in specified Microsoft 365 groups or Microsoft Entra security groups. It is an additional access restriction: review and correct the site’s permissions as well as the groups used for the restriction. See Microsoft’s Restricted Access Control documentation for details.
Restricted Content Discovery limits discovery
Restricted Content Discovery is intended to limit discovery of content from a site in experiences such as Copilot and search. It does not remove a person’s underlying permissions or make an incorrect permission assignment correct. Treat it as a discovery safeguard while you address access, not as a substitute for doing so. Microsoft describes this control in its guidance on restricting discovery of SharePoint sites and content.
A practical review process before rollout
- Identify priority sites. Start with sites that contain sensitive information, broad memberships, external collaboration, or content used by many employees.
- Use available governance reports. Look for unusual sharing, broad access, and unique permission scopes to help prioritize follow-up. Confirm findings with the site owner rather than treating a report as a complete permission decision.
- Validate access with owners. Ask who should access the site, its libraries, and any restricted folders or files. Include guest access and sharing links in the conversation.
- Remediate and record changes. Remove access that is no longer needed, narrow sharing where appropriate, and note exceptions that have a valid business purpose.
- Test with representative employees. After changes, confirm that employees can access the content they need and cannot discover material outside their intended access. Investigate unexpected results before expanding use.
For a smaller organization, a focused review with site owners can be a manageable starting point. Prioritize high-risk content, make access decisions with the people responsible for it, and revisit permissions as teams and projects change.
Frequently asked questions
What SharePoint permissions does Microsoft 365 Copilot use?
Copilot works with content the signed-in user is permitted to access. That makes the user’s existing site, library, folder, file, group, and sharing-link access important to review before rollout.
Can Anyone links or organization-wide sharing expose content to Copilot?
They can broaden who is eligible to access content. Whether a particular person can open it depends on the link or sharing settings. Review the audience and purpose of each link rather than relying on its label alone.
How should we review guest access?
Confirm that each guest still needs access, identify the sites or files they can reach, and remove access that is no longer required. Review the sharing settings behind the access as well as the guest’s membership.
Can we limit Copilot discovery while permissions are being reviewed?
Restricted Content Discovery can limit discovery of a site’s content, while Restricted Access Control can add a restriction on who can access the site. These controls serve different purposes and do not replace correcting the underlying permissions.
Make permission review part of a secure rollout
A careful SharePoint permissions review helps reduce the chance that Copilot makes already-accessible but overlooked content easier for employees to find. Check membership, inherited and unique permissions, sharing links, and guest access, then test with representative users. If you would like help planning a Copilot rollout or reviewing your business processes, AI Services Near Me offers a free AI consultation. Contact the team at (904) 658-0777 to discuss a next step.