Kimon wants to explain the benefits of an on-premises federation approach for identity to his organization's leadership. Which of the following is not a common benefit of a federated identity system?

Single sign-on (SSO) is part of identity federation. It also means that account management is simpler since multiple accounts don't have to be maintained for users who need to access systems and resources across the federation. Productivity can increase because staff don't have to remember multiple logins and can use SSO to log in once instead of multiple times. It does not, however, do anything to prevent brute-force attacks, and in fact, a single account with broad access can make it easier for an attacker to gain that broader access unless solutions like multifactor authentication are put in place.