The WanderWare isapi authentication filter may be installed as a module on ISA Servers configured as reverse cache site accelerators. When used in this configuration authentication management is performed on the ISA server and not the the web servers. The protected servers are fully shielded from malicious requests as such requests are dropped without further processing ...

WanderWare offers client browers the choice of either Basic Authentication(RFC 2617) or Digest Authentication with MD5 hashes(RFC 2617) as a login mechanism. Digest authentication is recommended as being more secure than Basic authentication ...