|Some time ago I tested the ability to put a password on a document in Microsoft Word, and read it in a free substitute (and the reverse direction). As I recall it didn't work. But reading about the updates to LibreOffice, I think this would work now; I didn't try it. If the claims about Open Office no longer being updated are true, I'd expect this to be a problem area.|
With all the claims about wire transfer fraud through hacking and monitoring the emails of real estate professionals, I'd want some means to communicate with them that's encrypted, and password-protected Word docs could work, as long as you exchange the password over the phone, not by email.