Single Sign-On

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What Does Single Sign-On Mean?

Single sign-on (SSO) is an authentication process that allows a user to access multiple applications with one set of login credentials. SSO is a common procedure in enterprises, where a client accesses multiple resources connected to a local area network (LAN).

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SSO advantages include:

  • Eliminates credential reauthentication and help desk requests; thus, improving productivity.
  • Streamlines local and remote application and desktop workflow.
  • Minimizes phishing.
  • Improves compliance through a centralized database.
  • Provides detailed user access reporting.

Techopedia Explains Single Sign-On

With SSO, a user logs in once and gains access to different applications, without the need to re-enter log-in credentials at each application. SSO authentication facilitates seamless network resource usage. SSO mechanisms vary, depending on application type.

SSO is not suited for systems requiring guaranteed access, as the loss of log-in credentials results into denial of access to all systems. Ideally, SSO is used with other authentication techniques, such as smart cards and one-time password tokens.

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Margaret Rouse
Technology expert
Margaret Rouse
Technology expert

Margaret is an award-winning writer and educator known for her ability to explain complex technical topics to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles in the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret’s idea of ​​a fun day is to help IT and business professionals to learn to speak each other’s highly specialized languages.