Fail-open: A fail-open design refers to a security system’s configuration that, in the event of a system failure, defaults to an “open” state, allowing all traffic or access. This approach prioritizes availability and continuity of operations over strict access control, often used in scenarios where service disruption is unacceptable despite the potential security risks it could introduce. This could also be doors that fail-open in case of an emergency, to allow for safe egress from a building.
Categories: CC D3: Access Controls Concepts | CCSP D3: Cloud Platform and Infrastructure Security | CISM D3: Information Security Program | CISSP D7: Security Operations | Security+ D3: Security Architecture | SSCP D4: Incident Response and Recovery
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