Search results for: zero trust
Zero Trust for OT Security: The Last Line of Defense
Quick Summary Traditional firewalls were never designed to meet the unique security needs of Operational Technology (OT) environments. While they are effective at blocking outside threats, once an attacker breaches the perimeter, devices inside remain vulnerable. Real-world incidents like Colonial Pipeline, Triton malware, and ransomware in building automation highlight how attackers exploit insecure OT protocols…
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Zero Trust OT Security What is Zero Trust? Why Zero Trust? Zero Trust is security framework that creates a more secure network architecture and prevents cyber breaches by eliminating any presumption of trust of users and devices regardless of their physical location or access history. Unlike traditional perimeter-based security models, a zero-trust approach assumes no…
Read MoreZero Trust Security for Microgrids and Energy Control Systems
Key Points Growing Cyber Risk in Microgrids: The distributed nature, two-way data flows, and device diversity in microgrids greatly expand the attack surface, making traditional perimeter-based security insufficient. Limitations of Legacy Security: Older “verify then trust” models lack device-level authentication/encryption, leaving systems vulnerable if an insider device is compromised and failing to protect at Purdue…
Read MoreZero Trust Security for Legacy OT Devices
Key Points Legacy OT Challenges: Many older OT systems use insecure protocols, lack modern security features, and have limited hardware resources—making them difficult to protect using traditional cybersecurity methods. Zero Trust Integration Options: Three primary methods exist—device replacement (costly), software-defined networking (limited protection), and security overlays (most effective and non-intrusive), with overlays offering encryption and…
Read MoreZero Trust Security for Building Management Systems in Data Centers
Key Points Cooling and Power Risks: While power failures are the top cause of serious data center outages, 13–19% result from cooling issues, with notable incidents caused by extreme heat. Cyber Threats to Environmental Systems: Attackers can overheat servers via workload manipulation, compromise HVAC controls through DCIM systems, or sabotage power systems—causing performance loss, hardware…
Read MoreZero Trust vs Remote Access VPN for Building Control Systems
Zero Trust architecture fundamentally transforms how organizations secure their building automation networks by addressing the inherent vulnerabilities of traditional remote access VPN-based security. Key Points VPNs Grant Broad Access; Zero Trust Enforces Least Privilege: VPNs give authenticated users full network access, while Zero Trust limits each user or device to only the specific resources needed,…
Read MoreHow Zero Trust Enhances the Security of Building Control Systems
Key Points Minimizes Attack Surface: Replaces location-based trust with granular access controls, reducing the chance of a single breach spreading across interconnected BAS components. Prevents Lateral Movement: Uses micro-segmentation to isolate workloads and resources, containing threats within compromised segments. Continuous Verification & Least Privilege: Continuously authenticates and authorizes users/devices while limiting each to only the…
Read MoreZero Trust: Reinforcing Security in Industrial Control Systems
As industrial control systems (ICS) become increasingly digitized, ensuring robust ICS security measures is paramount. In this article, we delve into the concept of Zero Trust and its potential to revolutionize the security landscape for industrial control systems. With cyber threats evolving in complexity and sophistication, traditional security measures are no longer sufficient. Zero Trust…
Read MoreZero Trust for OT Security: Cyber Defense Inside the Perimeter
Inside the Perimeter Defense is a Crucial Part of Defense in Depth for OT Security Firewalls for OT Security Perimeter Defense Firewalls are essential components of network security, acting as perimeter defenses that control incoming and outgoing network traffic based on predetermined security rules. However, they are not without their own set of potential security…
Read MoreKey Differences Between Zero Trust OT Security and Traditional IT Security
How is Zero Trust for OT Security Different from Traditional IT Security? Zero Trust for operational technology (OT) security differs significantly from traditional IT security models in several ways. Here are some key differences: Security Method Traditional IT Security Zero Trust OT Security Trust Model – Assumes that everything inside the network can be trusted.…
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