Reading time: 10 minutes
Whether IT infrastructure, access control or fire and intrusion protection – all these layers work together. International frameworks such as ISO 22301 for business continuity, ISO 31000 for risk management, IEC 62443 for industrial cybersecurity, the NIST Cybersecurity Framework, NIS2 and the EU CER Directive increasingly shape how operators of sensitive buildings and critical facilities approach resilience. In addition, we have looked at the role of video cameras as intelligent multisensors in buildings and at the era of mobile access control. This article brings all these topics together: it shows how perimeter security, as the physical outer layer, creates the foundation on which all further security levels are built.
No matter how sophisticated a building’s digital security architecture may be, if unauthorized individuals can enter the site unhindered, all subsequent protective measures are weakened. The perimeter is the first layer. It is where security begins.
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