Often issues arise which make governing boards wonder how i) information is managed to ensure effective communication, ii) essential information is retained, and iii) critical files are secured. Proofpoint claims to have an effective solution governing boards can provide for their managers 
to allay board concerns. Below is the link to Proofpoint and information about their services.
Retention and Disposition Governance Policies
The Proofpoint Enterprise Governance solution claims to allow organizations to enforce the disposition or retention of files across all file locations (hard drives, removable drives, shared drives, email, Microsoft SharePoint, IBM Lotus Domino, Dropbox, and Box.net). Governance policies can be manually executed by an administrator, or they can be configured to automatically execute according to a schedule or occurrence.
If your board has been discussing this topic and is looking for an effective solution, this may be one site you could check to find an effective solution.
