Use Windows Server 2003 Passports to keep users from having to remember different usernames and passwords for different sites that they visit, including your own.
Use .NET Passport to personalize the customer's experience.
Implement .NET Passport for Web-based applications such as Outlook Web Access (OWA).
If your organization requires tighter security, use a secondary layer of security (such as a four-digit PIN to accompany a password).
Review and adhere to the .NET Passport Privacy Policy located at http://www.passport.net/Consumer/PrivacyPolicy.asp and the Microsoft Statement of Policy at http://www.microsoft.com/info/privacy.htm.
If you are planning to use .NET Passport for Kids, be sure to review and adhere to the .NET Passport Kids Privacy Statement (http://www.passport.net/Consumer/_KidsPrivacyPolicy.asp?lc=1033).
Build Windows Server 2003 Passport functionality from scratch whenever possible instead of upgrading from earlier versions of .NET Passport. Convert existing accounts to Windows Server 2003 Passports.
Use SSL with .NET Passports to provide additional security.