What Is Single Sign-On? The Practical Guide | Huntress

This article explains single sign-on (SSO), detailing how identity providers and service providers use standards like SAML, OAuth 2.0/OIDC, and Kerberos to exchange tokens for seamless access, the benefits for security and usability, types and deployment models, implementation considerations and best practices, and key risks such as single points of failure, credential compromise, and misconfigurations, positioning SSO as a foundational element of modern access management alongside MFA, PAM, and zero trust.