The Protection of farm servers section shows the current version of the application and the status of its components. The following component statuses are possible:
Enabled. The component is enabled and runs correctly on all SharePoint farm servers.
Disabled. The component is disabled on all the servers in the SharePoint farm.
Protection errors. Errors have been detected in the operation the component on at least one of the SharePoint farm servers. The section contains a description of any errors that occur.
Unknown. The status of Anti-Virus protection / Content filtering on at least one of the SharePoint farm servers is unknown.