SSO

Technical terms
About 1 min read

A unified authentication method that allows users to access multiple integrated software services with a single login (ID/PW) without additional sign-ins. As a core component of enterprise security frameworks, it eliminates the hassle of managing individual accounts for each service and enables centralized access control.

Also known as
Single Sign-OnSingle Sign-On

Detailed explanation

Single Sign-On (SSO) is an authentication framework that grants access to multiple independent systems using a single set of credentials. In modern enterprise environments, authentication information is securely exchanged between Identity Providers (IdPs) like Okta and Microsoft Entra ID and services using standard protocols such as SAML 2.0 or OpenID Connect (OIDC). When adopting AI tools, SSO is not just a convenience but an essential requirement for preventing 'Shadow AI' and managing governance. It allows administrators to immediately revoke access for former employees, maintain audit logs of who accessed which tools, and enforce Multi-Factor Authentication (MFA) globally to minimize the risk of account hijacking.

Why it matters in AI tool selection

When adopting enterprise AI services, SSO support determines the success or failure of security governance. Without SSO, users sign up with individual emails, making it difficult for administrators to monitor usage and impossible to trace data leaks. Furthermore, without centralized account management, security incidents frequently occur where former employees retain access to AI tools containing internal company data.

What to check

  • Support for SAML 2.0 or OIDC standard protocols
  • Native integration capabilities with internal IdPs (such as Okta, Microsoft Entra ID, Google Workspace, etc.)
  • Support for SCIM (user provisioning) to enable automatic account creation and deprovisioning
  • Check if additional fees (Enterprise tier) apply to use the SSO feature

Real-world example

When a company adopts 'ChatGPT Enterprise', instead of all employees signing up individually, it integrates with the company's Microsoft Entra ID. Employees simply click the login button with their work email to instantly access ChatGPT for work. IT administrators can grant AI access only to specific departments or block access to all AI tools with a single click in the admin console when an employee leaves the company.

Confusing Terms

Social Login

A method like 'Sign in with Google', but it is a personal authentication method where the enterprise cannot control the account.

MFA (Multi-Factor Authentication)

A technology that enhances login security by requiring additional factors such as an OTP or biometrics alongside a password.