Every access control system shares the same blind spot: it knows a badge was presented, not who actually walked through the door. Tailgating and piggybacking were identified as the most common access control issue by 61% of security professionals surveyed by ASIS International, and IBM's Cost of a Data Breach Report attributes roughly one in ten breaches since 2020 to a physical security compromise, with an average of 241 days to identify and contain a breach once an unaccounted-for entry occurs.

This expert guide explains why credential-based access control cannot solve this problem on its own, and how Scylla ACVS closes the gap through identity, not just headcount. Powered by XactID, Scylla's robust face recognition in the wild, ACVS answers the question every badge reader structurally cannot: who is actually inside the building right now and are they authorized to be there? It covers the operational and financial scale of tailgating and insider risk, why turnstiles, manual video review, and awareness training all hit a ceiling, and how identity-based verification turns every access event into a decision-ready alert.

If you are a security director, SOC leader, or facilities manager responsible for what happens at your organization's doors, this guide gives you a practical, evidence-based framework for closing the identity gap in your access control program. Download it now.