If an attacker successfully obtains the credentials a person uses to authenticate with an organization's centralized authentication service, this would potentially allow the attacker to access all applications and services that the person has rights to, due to the nature of a centralized authentication process.
The statement is accurate. A centralized authentication service, commonly referred to as Single Sign-On or SSO, enables a user to log in with a single ID and password to any of several related, yet independent, software systems. This increases convenience but also introduces a risk. If an attacker compromises these credentials, they may gain access to multiple services or applications simultaneously. It is vital to have additional security measures, such as multi-factor authentication—which requires more than one method of authentication—to enhance security with SSO and reduce this risk.
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