Security Resource Center
Security features of Windows SharePoint Sevices, and the underlying ASP.NET 2.0 and .NET Framework 3.0, give you protection from unauthorized changes to your data, whether deliberate or inadvertent, and ensure that sensitive information is available only to those authorized to see it.
Find articles, webcasts, references, code samples, downloads, blog entries, forum entries, and other resources for Security development in Windows SharePoint Services.