Single Sign-On (SSO)

Updated 31 Jul 2026

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def
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  authenticating once to gain access to all assigned resources, without needing to log in again for each one
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limitation
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  usually time-limited — a single authentication might work for 24 hours before requiring re-authentication; requires the underlying authentication infrastructure to actually support SSO
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related
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  Federation
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  Identity and Access Management (IAM)
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cards
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  What's a key limitation of SSO?
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    Usually time-limited (e.g. a single authentication might only last 24 hours) and requires the underlying infrastructure to actually support it

Linked references 3