What is Single Sign-On? Benefits, How It Works, & Advantages

Single Sign-On (SSO) is a way to log in to multiple applications using just one set of credentials. Discover how SSO can build and boost user trust in your business by reading this article.

Understanding Single Sign-On (SSO)

If you’re always eager to learn new things, you might be curious about what Single Sign-On (SSO) is.

Single Sign-On (SSO) lets you access multiple applications or systems with just one set of credentials, like a username and password, entered only once.

In simple terms, SSO means you log in once and then access various applications or systems without having to log in again each time.

SSO works by allowing an authoritative entity, like a service provider or identity provider, to verify your identity and give you an access token. This token lets you access multiple connected applications or services.

SSO makes things easier for users because they don’t have to manage multiple logins or remember different passwords for each system.

Additionally, SSO enhances security by reducing the risk of password leaks and enabling more centralized access control

Benefits of Single Sign-On

Single Sign-On (SSO) can be used by a wide range of users, from individuals to organizations or companies. So, what are the benefits that users can gain from using SSO?

Here are some benefits of Single Sign-On that many people might not realize:


One of the main benefits of using Single Sign-On is efficiency, especially for users. Why? Users can access websites more quickly, allowing them to place online orders as soon as possible.

This benefit also positively impacts user comfort and satisfaction, enhancing the user experience on the website.

For website owners, you can try tips to improve user experience on your website in this article.

Better Security

In addition to efficiency, another benefit of Single Sign-On is enhanced security. Security is paramount, especially when it comes to identity.

Therefore, users must be wise in choosing which websites to visit that require them to provide identity information.

Single Sign-On is supported by two-factor authentication (2FA), allowing users to verify their identity twice. There is also multi-factor authentication (MFA), where users must verify their identity at least twice.

No More Worries About Forgetting Passwords

For those who frequently use various services and applications requiring registration, it’s important to remember passwords for each account. However, with Single Sign-On, users don’t have to worry about forgetting passwords.

Single Sign-On allows users to avoid the hassle of using different credentials for each account.

Faster Access

As a user, you surely want to access and use applications quickly. Unfortunately, using multiple applications simultaneously can cause errors or even malware issues.

Such risks can be minimized by using Single Sign-On. Relevant parties can access applications quickly and easily.

If you want to learn more about Emotet malware, one of the threats in cybersecurity, you can access this article.

User or Consumer Trust

The use of Single Sign-On also affects consumer trust. For businesses, trust is very important but requires extra effort to build.

Thanks to Single Sign-On, you can build trust through the level of security provided to consumers or users, fostering trust due to the sense of security they feel.

If there is a risk of login credential theft, criminals will not be able to access other systems.

How Does Single Sign-On Work?

Single Sign-On (SSO) is a system that manages user identities, allowing third-party applications like Google and Facebook to use these identities. However, SSO does not give these third parties access to your account credentials, like your password.

Here’s how Single Sign-On works:

Initial User Authentication

When you first try to access an application or system connected to SSO, you are asked to log in using your username and password.

Redirect to Authentication Service

After you enter your credentials, the login request is sent to the SSO authentication service, which acts as the identity provider.

User Authentication

The authentication service checks your credentials to make sure they are correct. This can involve verifying your username and password or using other methods like two-factor authentication (2FA).

Issuing an Access Token

If your login is successful, the authentication service creates a unique access token for you. This token allows you to access connected applications or systems without logging in again.

Redirect Back to the Original Application

Once you have the access token, you are redirected back to the original application or system you wanted to access, along with the token.

Access Token Verification

The application or system checks the access token with the SSO authentication service to make sure it is valid.

Access Granted

If the token is valid, you are granted access to the application or system without needing to log in again. You can use the service until your token expires or is revoked.

Standard Configuration for Single Sign-On

Understanding the standard setup of single sign-on is crucial, whether you’re a business/website owner or a user. Here are the common standards used in single sign-on:

  1. OAuth 2.0
    • Used for authorizing web-based applications.
    • Allows apps to access data via other existing apps, like Google or Facebook.
  2. SAML
    • An open standard established in 2001.
    • Many companies use it to authenticate users and grant access to company systems.
  3. OpenID
    • Another standard in single sign-on.
    • Works alongside OAuth 2.0 and SAML for seamless user authentication and system access.

Pros and Cons of Single Sign-On

Understanding single sign-on involves knowing its upsides and downsides. What are they?

Advantages of Single Sign-On Using single sign-on brings several benefits:

  • Easy user management
  • Identity protection against theft and misuse
  • Streamlines admin tasks
  • More efficient credential handling

Disadvantages of Single Sign-On However, single sign-on isn’t flawless. It has drawbacks like:

  • Potential risks to credentials without proper security configuration

Using Single Sign-On in Various Aspects of Life

Understanding what single sign-on is important for everyone, as it can be applied in different ways.

Here are some examples of using single sign-on:

  • In large companies, it grants employees access to internal systems and software that authenticate data and information.
  • Small companies use it for employees and consumers. Consumers benefit by creating accounts on websites for product purchases.
  • Individuals can use single sign-on for logging into websites or applications.


Can you summarize what single sign-on is from the explanation above in an easy-to-understand manner? Single sign-on, or SSO, lets users access many apps with just one set of credentials, reducing repeated logins.

SSO improves convenience and security through token authorization, lowering the risk of credential leaks. It boosts efficiency, security, and user comfort while reducing the chance of forgetting passwords.

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