I have a last 13 month named set used in the Excel web service.   When I  select update\update all connections, I receive the warning message saying that

 

"Performing this operation requires using a query to refresh external data.  a malicious user can design a query to access confidential information and distribute it to other users or perform other harmful actions...

 

Do you want to query and refresh the data in this workbook

 

 [OK]  [cancel]"

 

 

This is very annoying to my user. 

 

How can I diable this warning message in Excel web service in Sharepoint ?