A cybersecurity compliance gap is a shortfall between required security controls and the safeguards an organization can demonstrate it has implemented and documented. A control may be missing, inconsistently applied, or present but supported by incomplete evidence, such as records that fail to show reviews, monitoring, or remediation.
These gaps matter because organizations need to verify that protections work, not merely state that they exist. In practice, gaps can surface during audits or regulatory reviews, or when teams cannot show who owns a control and whether it is maintained. For systems involving third-party providers or AI tools, clear inventories, access records, monitoring, and accountable owners help close gaps and make security posture verifiable. A compliance gap is not, by itself, proof of a cyberattack or operational harm.