Users of OneDrive and Teams (SharePoint) may receive the following email notification when a file is uploaded to the cloud.

This item is protected by a policy in your organization. Detected issues from data loss prevention:

• Item is shared with people within your organization
• Item contains the following sensitive information: ****DATA FOUND****
• Exception matched:

Open the item to fix the issues.

As the message states this is due to the data contained or shared in the document, and as such is highlighting this to the owner, Documents with sensitive information will be blocked from being shared outside of the organization.

Data will not be removed or changed and the message is a warning/update to the owner.  clicking Open the item to fix the issues. will open the item in SharePoint where access can be checked if needed.

the message can be acknowledged, ignored, or deleted as the user wishes, Outlook rules can be made to capture and archive to make these messages more manageable.