OT Security Blog
Technical articles, industry analysis, and practical guidance on securing operational technology environments and critical industrial infrastructure.
Where Your OT Security Budget Actually Needs to Go: A Three-Tier Investment Framework
Most boardroom conversations about OT security spending start with the wrong question: 'How much should we spend?' The real question is 'What are we actually building?' Here is a practical investment framework that reframes the conversation around compliance, operational capability, and cyber risk reduction.
PLC Security: Protecting the Brain of Your Industrial Process
Programmable Logic Controllers are the most targeted devices in modern OT attacks. From Stuxnet to PIPEDREAM, adversaries have invested in PLC-specific capabilities that most industrial organizations are wholly unprepared to detect or stop.
Cyber Insurance for OT: What Underwriters Want to See
Cyber insurance for operational technology environments has become significantly harder to obtain and more expensive to renew. Understanding what underwriters assess, how OT-specific exposures affect premiums, and what security investments actually improve insurability is now a practical business requirement.
OT Threat Intelligence: What CISOs Need to Know About ICS Threat Actors
Generic cybersecurity threat intelligence has limited value in OT environments. Understanding the specific threat actors who target industrial control systems, their capabilities, their targeting patterns, and their techniques, is the foundation of a threat-informed OT security program.
Zero Trust Architecture for Industrial Control Systems: What Works and What Does Not
Zero Trust has become the dominant security architecture model in enterprise IT. Applying its principles to OT environments requires careful adaptation. Some Zero Trust concepts translate well, while others conflict with OT operational requirements and must be modified or abandoned.
OT Cybersecurity for the Water and Wastewater Sector: A Practical Guide
Water and wastewater utilities face a unique combination of high public health consequence, limited security resources, and aging infrastructure. The Oldsmar water treatment attack was a warning. Building defensible OT security programs for water utilities requires approaches tailored to the sector's specific constraints.
Air Gaps in OT: The Myth of Network Isolation
The air gap has been the cornerstone of OT security thinking for decades. The belief that industrial systems are safe because they are isolated has allowed organizations to defer security investment indefinitely. That belief is largely a myth, and a dangerous one.
Safety Instrumented Systems and Cybersecurity: Why TRITON Changed Everything
Safety Instrumented Systems are the last line of defense before industrial disasters. The TRITON attack proved that adversaries are willing to target those defenses directly. Understanding what happened, why it matters, and how to protect SIS from cyber threats is now a fundamental obligation for any organization operating safety-critical processes.
The OT Security Skills Gap: How to Build an Industrial Cybersecurity Team
The shortage of professionals who understand both industrial control systems and cybersecurity is one of the most critical constraints facing OT security programs today. Organizations that wait for the market to solve this problem will be waiting indefinitely.
OT Patch Management: Why You Cannot Just Patch Tuesday Your Way to Safety
The IT world has normalized monthly patch cycles and automated deployment. In OT environments, that approach can be more dangerous than the vulnerabilities it aims to fix. Understanding why OT patching is different, and building a program that actually works, requires rethinking the entire model.
SCADA Security in 2026: Threats, Trends, and Defensive Strategies
The SCADA threat landscape in 2026 looks nothing like it did five years ago. Named threat groups with ICS-specific capabilities, ransomware operators with OT expertise, and a decade of digital transformation have reshaped the risk equation for supervisory control systems.
The State of Backup and Recovery in Manufacturing: Key Findings from the 2026 Benchmark
New benchmark data from 100 IT and OT decision-makers reveals that manufacturing organizations face a critical gap between backup deployment and actual recovery capability. With 74% experiencing annual downtime, only 18% meeting recovery targets, and OT systems dangerously under-protected, the findings demand a fundamental shift from backup completion metrics to validated recovery readiness.
IT/OT Convergence: Security Challenges of Connected Industrial Networks
Digital transformation is merging IT and OT networks at an accelerating pace. Without deliberate security architecture, convergence creates attack paths from corporate email to turbine controllers. Here is what CISOs need to understand.
OT Security Monitoring: Why Your IT SIEM Is Not Enough for Industrial Environments
Enterprise SIEM platforms were designed for IT events. Monitoring OT environments demands protocol-aware detection, asset-centric baselines, and an understanding of physical process context that traditional security tools cannot provide.
Building an OT Security Compliance Roadmap: From Gap Analysis to Certification
A compliance roadmap transforms regulatory requirements into a phased, prioritized plan that strengthens your actual security posture while meeting certification objectives on a realistic timeline. Here is how to build one for IEC 62443, NIST, or OTCC.
Supply Chain Cybersecurity in OT: Managing Third-Party Risk in Industrial Environments
OT environments depend on a complex web of vendors, integrators, and component suppliers. A single compromised link in this supply chain can undermine years of security investment. From firmware integrity to integrator access controls, third-party risk management is essential for industrial cybersecurity.
Securing Remote Access to OT Environments: Best Practices for Industrial Operations
Remote access is one of the highest-risk vectors in OT security. Implementing secure remote access requires purpose-built architecture, strict controls, and continuous monitoring.
OT Asset Discovery: Building the Foundation of Industrial Cybersecurity
Most industrial facilities have more devices on their OT network than anyone realizes. OT asset discovery and visibility form the foundation of every effective industrial cybersecurity program.
Ransomware in OT Environments: Why Industrial Systems Are Prime Targets
Ransomware operators are increasingly targeting industrial and OT environments, where the cost of downtime makes organizations more likely to pay. Understanding the unique dynamics of OT ransomware is critical to building an effective defense.
NIST SP 800-82: A Practical Guide to Securing Industrial Control Systems
NIST SP 800-82 Rev 3 provides a comprehensive roadmap for securing industrial control systems. This guide breaks down its key recommendations and shows how to apply them in your OT environment.
IEC 62443 Explained: A Practical Guide for OT Security Teams
IEC 62443 is the leading international standard for industrial cybersecurity. This guide breaks down the Security Level framework, explains zones and conduits, and walks through conducting a gap assessment in real-world OT environments.
OT Cybersecurity 101: Why Industrial Networks Face Unique Threats
Industrial control systems were never designed with cybersecurity in mind. Understanding the fundamental differences between IT and OT security is the critical first step toward protecting your operational technology environment and the physical processes it controls.