Crucial Exams

ISC2 CISSP Practice Question

Which of the following scenarios BEST demonstrates the "fail securely" (fail-safe or fail-closed) design principle when an organization's single sign-on (SSO) authentication service becomes unavailable?

  • The system authenticates users indefinitely using the last cached valid credential set.

  • The system denies all login attempts and generates an alert until the SSO service is restored.

  • The system grants temporary guest access with limited privileges so employees can keep working.

  • Multi-factor authentication is automatically disabled so users can log in with passwords only.

ISC2 CISSP
Security Architecture and Engineering
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