Platform Single Sign-on (Platform SSO) is a framework built into computers with macOS 13 or later that provides users a simpler way to access organization resources protected by a cloud identity provider (IdP). It allows macOS to do the following:
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Pair and sync local account credentials with an IdP password
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Pair local account credentials with a smart card
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Create a secure, hardware-bound non-phishable authentication factor to securely access organization resources
Platform SSO for macOS requires a cloud IdP to be integrated with Apple's Single Sign-on extension (SSOe) framework. You can use Jamf School to enable Platform SSO by distributing a third-party SSOe application to computers in your environment along with a profile that contains the App Extension SSO payload.
For more information, see Platform Single Sign-on for macOS in Apple Platform Deployment.