Search for password protected documents

Hi,

Is it possible to search for documents that are password protected documents or have an encrypted attachment?
I have given the customer instructions on how to remove the password but they can't remember which documents are password protected.

I have tried to search full text for empty() but just get a 404 but I was not sure this would work as the document is an email with an attached Microsoft Office document.

Thanks
Andrew
 

Dear Andrew Wheeler! It looks like the Community cannot answer your question. That's why we have opened a Support Request with the Number SR-140679-F0X8H for you. A Software Support Specialist will contact you directly to follow up. We will update this thread with the solution as soon as we have resolved the Support Request. With best regards, DocuWare Support Team