Re: Re: Protecting sensitive files on a Windows file server

I'd like to remind you that regardless of encrypted file system (like EFS) or 
"container" encryption such as PGP, the only way you can you protect your 
documents (MS Office, Adobe Acrobat) is embedding security in each document via 
technologies of Digital Rights Management. There are several products that can 
do it. We have been thoroughly testing two - a peer-to-peer based Avoco 
secure2trust and client-server based EMC/Authentica IRM. The difference the DRM 
makes is that users can transparently work with protected documents from within 
native applications (e.g. MS Word) and can only do what is permitted to do with 
the document - once they were correctly authenticated (normally, in Windows 
domain - against AD). You can even set access expiration dates for documents... 
In addition to protection you, of course, get a very good tracing capabilities 
(with centralized DRM solutions...) so you always know how many copies exist 
and which users deal with which documents.