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Single Sign-on (SSO) - Sign In Once, Access All Applications Securely

With Single Sign-on, you can reduce the effort required to log in, relieve the burden on your IT team, and improve the security of your applications at the same time.

Sign In Once, Access Applications Securely

Many applications often mean many logins. Single Sign-on reduces this effort by allowing users to authenticate once and then access multiple authorized applications without having to sign in again.

SSO therefore improves the user experience while also strengthening centralized access control.

68 %

of employees use up to ten different applications within an hour.

bis 55 %

less helpdesk effort – Single Sign-on reduces password-related issues and relieves IT support by reducing requests related to login credentials.

How Does Single Sign-on Work?

With an SSO solution, a central Identity Provider handles authentication. Once successfully authenticated, users can access connected applications without having to sign in to each application separately. Depending on the environment, different protocols and methods may be used.

Challenges in Practice

Many organizations today manage a large number of different applications. Often, each application has its own login process and credentials.

multiple passwords per user
forgotten passwords
high effort for password resets
inconsistent security policies
limited user experience

With OEDIV SecuSys, Single Sign-on becomes the connecting element across your application landscape – centrally controlled, securely integrated, and tailored to your organization’s requirements.

What We Can Do for You

Analyze existing login processes
Introduce Single Sign-on
Integrate existing applications
Connect cloud services
Implement Identity Providers
Integrate existing directory services
Support hybrid IT environments
Combine SSO with Multi-Factor Authentication (MFA)

Fewer Passwords, More Control

SSO can reduce the number of passwords users need and support centralized security mechanisms such as Multi-Factor Authentication.

At the same time, centralized authentication provides a stronger foundation for controlling and monitoring access processes.

OEDIV SecuSys supports organizations from planning and implementation through to the further development of their SSO environment.

Single Sign-on and Multi-Factor Authentication

Single Sign-on delivers its greatest benefits when combined with Multi-Factor Authentication (MFA). Users sign in once and additionally verify their identity using a second factor – for example, an authenticator app or security key.

This provides a convenient login experience without compromising a high level of security.

Your Benefits

Single Sign-on combines security and user-friendliness.

one login for multiple applications
less password management
fewer helpdesk requests
faster access to applications

centralized control of logins
consistent security policies
higher user satisfaction
easy integration of existing systems

SSO with OEDIV SecuSys

OEDIV SecuSys supports organizations in designing and implementing Single Sign-on solutions. This is not limited to the technical integration of individual applications. We consider the existing system landscape, user requirements, and the overarching IAM architecture. Based on this, we work with our customers to develop an SSO concept that can be integrated into their existing structures. As a vendor-independent partner, we can evaluate different technologies and solution approaches and tailor them to the individual situation of each organization.

FAQ

Frequently Asked
Questions

Here you will find answers to the most important questions

about our services and solutions.

What Is Single Sign-on?

Single Sign-on (SSO) enables users to sign in once to a central authentication service and then access all connected applications without signing in again. The applications no longer verify a password themselves but instead trust the authentication service’s verification, communicated via standard protocols such as SAML 2.0 or OpenID Connect.

How Does SSO Work?

When a user opens an application, the application redirects them to the central authentication service. There, the user authenticates using a password and second factor or through passwordless authentication. The authentication service issues a signed token, which the application verifies and uses to obtain the user’s identity and group memberships. As long as the session with the authentication service remains valid, users do not need to sign in again when accessing additional applications. We configure session durations for each application: short for sensitive systems and longer for everyday use.

What Are the Benefits of SSO?

Single Sign-on reduces the number of passwords per user to one, cuts password-reset requests – one of the most common types of helpdesk request – by up to 80 percent, and saves employees 15 to 30 minutes of login time per day. More importantly from a security perspective, there is a single point at which Multi-Factor Authentication can be enforced, policies can be applied, logins can be recorded, and all access can be blocked at once when an employee leaves the organization.

Is SSO Secure?

Yes, provided the central login is protected more strongly than any individual password was before: phishing-resistant Multi-Factor Authentication, access policies based on device and risk, short session durations for sensitive applications, and monitoring of the authentication service itself. Without these measures, Single Sign-on concentrates the risk in a single password. With them, it is the most effective tool for eliminating password phishing within an organization. We therefore never implement SSO without a second factor.

Which Applications Support SSO?

All applications that support SAML 2.0, OpenID Connect, or OAuth 2.0, including Microsoft 365, SAP, Salesforce, ServiceNow, Google Workspace, Atlassian, Workday, and most cloud services. Older in-house applications without standard protocol support can be integrated via Kerberos, header-based authentication, or a reverse application proxy. Every SSO project we undertake begins with an application inventory and a classification based on the available integration method.

SSO or Password Manager?

A password manager continues to store one password per application and automatically fills it in. The application still verifies the password as usual. Single Sign-on replaces these passwords: the application trusts the central authentication service, so no application-specific password exists anymore and cannot be stolen. Password managers are a transitional solution for applications that cannot yet be integrated with SSO.