Achieve a more secure deployment. SQL Server 2005 provides rich security features to protect data and network resources.
Protect your data. SQL Server 2005 clustering supports Kerberos authentication on a virtual server, and Microsoft Windows–style policies on standard logins so that a consistent policy is applied across all accounts in the domain.
SQL Server 2005 supports encryption capabilities within the database itself, fully integrated with a key management infrastructure. By default, client-server communications are encrypted.