A group of developers has a shared backup account to access the source code repository. Which of the following is best way to secure the backup account if there is an SSO failure?

PAM (Privileged Access Management) is the best solution because it specifically addresses the security of accounts with elevated privileges, like a shared backup account. PAM systems enforce strict controls, monitor, and audit access to these critical accounts, which is crucial during an SSO failure when alternative authentication methods might be needed or when access needs to be tightly controlled. RAS (Remote Access Service) is a general remote access technology, not focused on privileged account security. EAP (Extensible Authentication Protocol) is an authentication framework, not a system for managing privileged accounts. SAML (Security Assertion Markup Language) is an XML-based standard for exchanging authentication and authorization data, primarily used for SSO, and therefore would be unavailable during an SSO failure.