The problem Construction Security Meets Cybersecurity solves

Modern security environments require more than protection against conventional physical intrusion.

Buildings containing sensitive information, electronic systems and critical infrastructure may require several complementary layers of protection. Physical security protects the building against unauthorized access, while cybersecurity protects digital systems and information. In high-security environments, the building envelope can form an additional part of this security architecture.

This project explores the intersection between construction security and cybersecurity, using high-security windows as an engineering example.

An RC4 security window is designed to provide resistance against manual burglary attacks. This is a physical-security function. Electromagnetic information protection addresses a different threat: limiting the possibility of unintended electromagnetic emissions becoming a source of information leakage.

These requirements should not be confused or treated as interchangeable.

The project presents a way of looking at a security window as part of a wider protection system:

threat → security requirement → construction concept → materials and components → complete assembly → testing and verification

This approach can help architects, security specialists and engineers understand why a high-security construction element should be evaluated as a complete system rather than by considering only its glass, profile or individual component.

The concept is particularly relevant to facilities where physical intrusion protection and information security have to work together, including high-security rooms, critical infrastructure and environments where sensitive information is processed.

The objective is to demonstrate how principles normally associated with cybersecurity can be connected with physical construction engineering and security requirements.

Challenges I ran into

The main challenge was connecting two security disciplines that are usually discussed separately: physical construction security and cybersecurity.

The first difficulty was terminology.

An RC4 classification describes resistance against manual burglary attacks. It does not describe electromagnetic information security. Treating these two properties as a single security classification would create an inaccurate engineering interpretation.

The solution was to separate the threat models first and then examine where they can interact through the building envelope.

A second challenge was avoiding a component-level approach.

A security window cannot be evaluated only by looking at the glass, frame or hardware. The actual security performance depends on the complete construction, its configuration, interfaces and installation.

The resulting approach was to treat the window as one element within a larger security architecture and to distinguish clearly between:

physical resistance against intrusion,
electromagnetic information protection,
testing and verification,
and the documented performance of the complete construction.

This made it possible to connect construction engineering with cybersecurity without treating RC4 and electromagnetic protection as equivalent classifications.