What is the primary feature of Single Sign-On (SSO) technology?

The primary feature of Single Sign-On (SSO) technology is a unified login experience across multiple systems. SSO allows users to authenticate once and gain access to various applications or services without needing to log in separately to each one. This streamlined approach enhances user convenience and productivity, as it reduces the number of credentials users have to manage and enter.

By implementing SSO, organizations can improve user satisfaction and reduce password fatigue, leading to a decrease in potential security risks associated with weak or reused passwords. This functionality is particularly beneficial in environments where users need to access numerous applications frequently, such as in enterprise settings or cloud-based services.

Options related to mandatory password changes or multi-factor authentication, while important aspects of broader identity and access management strategies, are not core features of SSO itself. Additionally, the notion that access is limited to one system per user contradicts the very essence of Single Sign-On, which is designed to grant access to multiple systems seamlessly with a single authentication event. Thus, the correct identification of the key feature of SSO is its capability to provide a unified access experience for users across multiple platforms.