One of the security mechanisms I always found lacking in SharePoint 2001 was anti-virus protection. If you have anti-virus software installed on your workstations and servers, then documents should be scanned for viruses before added to the SharePoint database. However, most anti-virus products are incapable of scanning a database’s contents, and SharePoint 2001 did nothing to make this possible. SharePoint version 2, on the other hand, can actually work with your anti-virus software to keep your SharePoint database virus-free.