The ability of the Office Telemetry Agent to periodically upload telemetry data to a shared folder must be disabled.

Office Telemetry is a new compatibility monitoring framework. When an Office document or solution is loaded, used, closed, or raises an error in certain Office 2013 applications, the Office Telemetry application adds a record about the event to a local data store. Each record includes a description of the problem and a link to more information. Inventory and usage data is also tracked. The actual logging capability will be enabled, but this policy allows that data to be uploaded to a remote location which, if enabled, could pass information about the internal network and configuration to that remote site.