PortalGuard is an authentication and security solution that allows users to securely authenticate and manage portal login credentials from a web browser. It supports multiple platforms including WebSphere Portal, SharePoint, and Lotus Domino. PortalGuard helps address challenges like stronger authentication, reduced risk and compliance with security standards. It offers features like self-service password reset, single sign-on, one-time passwords and challenge questions. PistolStar, the vendor of PortalGuard, is an authority in tailored authentication solutions with over 475 customers worldwide and experience across numerous platforms.