Risk of Connecting Facility Systems to Business IT Network

Connecting facility systems to a business IT network can significantly increase cybersecurity risks. Systems such as Access control, lighting, HVAC, fire protection, and elevators, which are often integrated for better control and integrated operations become potential entry points for cyberattacks.

A. Key Risk of connecting facility system to business IT network includes:

1. Security Threats and Vulnerability

When facility systems (such as HVAC, access control, or surveillance) share the same network as business IT systems, they become vulnerable to cyberattacks. Malicious actors can exploit security weaknesses in these systems, potentially compromising critical infrastructure.

2. Data Privacy

Integrating facility systems with business networks may expose sensitive data. For instance, if an HVAC system shares a network with employee workstations, unauthorized access could lead to data leaks or privacy violations.

3. Service Disruption

Facility systems require stability and uptime. When connected to the same network as business applications, disruptions (due to maintenance, updates, or failures) can impact both operations and productivity.

B. Benefits of Separate Networks

1. Improved Security

Isolating facility systems on a separate network reduces the attack surface. Security measures can be tailored specifically for these systems, minimizing the risk of unauthorized access.

2. Better Control

Separate networks allow granular control over traffic flow. IT administrators can prioritize critical facility services without affecting business applications.

3. Improved Performance

Dedicated networks ensure optimal performance for facility systems. Bandwidth allocation and Quality of Service (QoS) settings can be customized for their unique requirements.

4. Easy Maintenance

Maintenance tasks, such as firmware updates or system patches, can be performed without disrupting business operations. Isolated networks simplify management.

C. Conclusion

Both approaches have pros and cons. Integrating facility systems with business networks offers convenience but increases risk. Separate networks enhance security and performance but require additional infrastructure. Ultimately, the choice depends on the organization’s priorities and risk tolerance. Remember that assessing the specific needs, budget, and risk profile of your organization is crucial when deciding between integrated or separate networks.