Penetration Test Asks Questions About Copilot Access to SharePoint Online

Copilot for Microsoft 365 Penetration Test

An article by a company specializing in penetration tests raised some questions about how attackers might use Copilot for Microsoft 365 to retrieve data. The article is an interesting read and reveals how Copilot can reveal data in password protected Excel worksheets. However, many of the issues raised can be controlled by applying available controls, and the biggest worry is lhow the account being used to run Copilot came to be compromised!

How SharePoint Online Restricted Content Discovery Works

Restricted Content Discovery (RCD) is a solution to prevent AI tools like Microsoft 365 Copilot and agents accessing files stored in specific sites. RCD works by setting a flag in the index to stop Copilot attempting to use files. RCD is available to all tenants with Microsoft 365 Copilot and it’s an excellent method to stop Copilot finding and reusing confidential or sensitive information.