Platform SSO, introduced in macOS 13, is a system-level framework that enables Single Sign-On (SSO) across the operating system. With Platform SSO, users authenticate once and gain seamless access to multiple applications and services without the need to re-enter credentials. This framework integrates with identity providers (IdPs) such as Microsoft Entra ID, allowing organizations to streamline authentication and improve security across their enterprise environments.
When configured with Microsoft Entra ID, Platform SSO enables users to sign in to their macOS devices using either smart cards or their Entra ID credentials. Additionally, it can be set up to generate a secure, hardware-bound, non-phishable authentication factor, which is recognized by Entra ID for accessing organizational resources.
