Physical Security vs Cybersecurity: Who Owns the Gap?

The question is not whether physical security or cybersecurity owns an IP camera, access-control server or visitor-management platform. The more useful question is: who owns the risk created where the two disciplines meet?

Networked cameras, controllers, video servers, mobile credentials, cloud portals and integrator access depend on networks, identities, software and data. Their purpose remains physical: controlling entry and protecting people, assets and operations.

If ownership is divided only by technology, critical controls can fall between teams. Physical security assumes IT will secure a device. IT assumes physical security knows whether it is still needed, properly configured or supported. HR completes an offboarding process but no one confirms that physical access was removed. A contractor account is created for service work but not reviewed after the work ends.

The solution is not to merge every team. It is to define shared controls, decision rights and operating handoffs. A mature enterprise physical security program treats cybersecurity as a required partner and gives the seam an explicit owner.

Why the seam is now a material management issue

Traditional physical security equipment was often self-contained or connected through proprietary infrastructure. Today, many systems are IP-based and integrated with corporate services. They may use enterprise networks, directory services, cloud storage, mobile apps, remote support tools and third-party APIs.

A physical security asset can introduce unsupported software, weak credentials, inadequate segmentation, exposed remote administration, logging, patching or data-retention issues. A cybersecurity change can disrupt communications, authentication, storage or remote management. A vulnerability decision may need temporary physical compensating controls while replacement is planned.

These are not edge cases. They are ordinary program management issues in organizations with distributed sites and connected security systems.

Avoid the false choice: IT ownership or physical security ownership

IT can deploy network controls but does not normally own access policy, site risk, alarm response, evidence or door-group lifecycle. Physical security understands operational purpose but may lack authority over network architecture, privileged access, patching, identity standards and incident response.

The more effective model distinguishes between business ownership, technical ownership and program accountability.

Business owner — Defines the physical security outcome, risk requirement, operating policy and priorities

Technical owner — Controls network, identity, infrastructure, cybersecurity architecture and technical assurance

Physical security program owner — Coordinates lifecycle, standards, vendors, administration, delivery and cross-functional decisions

System administrator — Operates approved workflows, maintains records and escalates exceptions

Risk or security governance — Challenges risk decisions, monitors policy alignment and supports escalation

One person or team may perform more than one role in a smaller organization. What matters is that the responsibilities are explicit and there is one accountable point for the end-to-end physical security program.

The five controls most likely to fall between teams

1. Network-connected device governance

Cameras, network video recorders, access-control servers, controllers, intercoms and gateways should be treated as managed network assets. That means the organization should know what is connected, where it is connected, who owns it, which software and firmware it runs, how it is authenticated, how it is segmented and how it will be supported.

Physical security identifies operational need, device type, criticality and availability. IT defines network admission, segmentation, monitoring, patching and remote access. The program owner ensures neither side assumes the other maintains the record.

A practical lifecycle question is: can the organization identify each critical connected security system, its support status and its technical owner without relying on a vendor’s memory? If not, the asset governance process needs attention.

2. Software, firmware and vulnerability management

Not every device can be patched on the same schedule as a standard workstation. Some updates require compatibility testing, site access, vendor involvement or a planned outage. Some legacy platforms cannot be updated at all.

That does not remove the need for a control decision. It creates one. IT should establish vulnerability assessment and exception processes. Physical security should explain operational impact, criticality and available compensating controls. The program owner should maintain the lifecycle roadmap and drive the replacement or remediation decision when an exception cannot remain open indefinitely.

Documenting exceptions is important. An unsupported access-control server may be temporarily accepted because replacement is scheduled with a facility project. The record should identify the owner, expiry date, compensating controls and funding path. An undocumented exception is simply ungoverned exposure.

3. Vendor and integrator remote access

Integrators often need remote access to diagnose systems, support servers or assist with configuration. That access can be operationally useful and should not be managed through informal shared credentials or permanent broad permissions.

Define the approved method for vendor access, identity sponsorship, authentication, authorization, session logging, approval, expiry and emergency use. IT owns the enterprise access-control mechanisms; the physical security program owner confirms which vendor role is needed, when it is justified and whether it remains necessary.

The commercial agreement should cover notification, access restrictions, incident obligations, documentation, credential return and personnel changes.

4. Access-control identity lifecycle

Physical access is an identity entitlement. It should follow the same discipline as other access decisions, while recognizing the realities of sites, shifts, contractors and emergency response.

HR is commonly the authoritative source for employment status and core worker information. A manager or area owner determines business need. Physical security administration provisions access under approved roles and records exceptions. IT may support directory integration, single sign-on, mobile credentials or identity governance tooling. The program owner monitors whether the process is complete and reliable.

Offboarding is the essential test. A termination or departure should trigger a timely, auditable removal of physical access, including cards, mobile credentials, parking permissions, keys and special-area access where applicable. The workflow must also address people who are not in the HR system, such as contractors, visitors, temporary workers and service providers.

Periodic review addresses imperfect joiner-mover-leaver processes. Area owners should confirm high-risk groups with clear names, defined owners and a process to remove unneeded access.

5. Incident coordination and evidence handling

A cyber incident can have a physical dimension, and a physical incident can have a cyber dimension. Examples include suspected misuse of credentials, compromise of a connected device, loss of video evidence, a breach involving a secure room or a malicious actor with both network and site access.

The incident plan should identify notification paths between IT security, physical security, Facilities, legal, HR, Risk and Operations. It should specify who decides whether systems are isolated, how video or access records are preserved, who communicates with the integrator and how restoration is authorized.

Practice material scenarios so teams recognize when joint assessment is needed and protect evidence and continuity.

Establish a shared control model

The most effective way to govern the seam is to write down a small number of cross-functional controls and review them regularly. The control model should be specific enough to guide work but concise enough that operational teams can use it.

A useful starting checklist includes:

• a current inventory of connected physical security systems and their technical and business owners;

• approved network, segmentation, remote-access and authentication requirements;

• a patching, vulnerability and exception process appropriate to security technology;

• access-control identity workflows for employees, contractors, visitors and emergency access;

• defined retention, access and handling rules for video and security records;

• standards for project design, commissioning, handover and documentation;

• a vendor access and third-party support process; and

• joint incident coordination and escalation procedures.

Each control needs a trigger, owner, evidence and review cadence. A new camera should trigger network review and registration; a vendor personnel change, identity review; an end-of-support notice, lifecycle assessment and risk decision.

Build the operating relationship, not just the policy

A policy that says IT and physical security will collaborate is not enough. Teams need a working rhythm.

Establish named operational contacts and escalation for outages, vulnerabilities, access and vendor support. At program level, review lifecycle, exceptions, projects, standards and vendor access. Escalate unresolved risk, capital and policy exceptions to decision-makers.

Projects are a useful place to reinforce the model. Include IT early in a new access-control or video initiative, before equipment is ordered. Include physical security in network or identity changes that may affect availability or administration. Require a defined handover that confirms technical documentation, credentials, support ownership, operating procedures and asset records.

The physical security program owner connects the parties, makes dependencies visible, tracks actions and maintains controls after completion.

Closing: assess the seam before an incident exposes it

Most organizations already have capable physical security and IT teams. The opportunity is to examine the handoffs between them, where connected assets, identities, vendors and incident responsibilities can be missed.

A baseline assessment can map the current ownership model, connected-asset inventory, access-control lifecycle, vendor access practices and exception process. It provides a practical fact base for assigning responsibility at the physical security-cybersecurity seam and improving it without creating unnecessary bureaucracy.