"The most common privacy breaches are inadvertent," says Concannon, "often resulting from carelessness or lack of awareness by an employee."

The best content security strategy for SharePoint is one that lets employees freely contribute content and collaborate, but enforces policies within departments to keep sensitive documents from ending up in the wrong hands, internally as well as outside the company.

HiSoftware recommends five of the most common ground rules for protecting content in SharePoint.