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Topics:

Cyber Resilience

Operational Resilience

Risk Management

Securing the Frontier: Moving Past AI Fear and Toward Systemic Incentives

Internet-facing cyber-physical systems (CPS) are a consequential and structural risk in many modern manufacturing environments, one that can introduce disruption without the need for much sophistication on a threat actor’s part.

Cyber Resilience

Operational Resilience

Exposed Manufacturing Assets a Consequential Risk

Swisscom Head of Physical Security, Safety, BCM, Emergency & Crisis Management Thomas Dummermuth writes about the growing mandates to achieve operational resilience—digital and physical—within data centers and critical infrastructure organizations to meet evolving threats.

Operational Resilience

Cyber Resilience

Achieving Cyber and Physical Resilience Across Data Centers, Critical Infrastructure

Thomas Dummermuth

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A New Jersey appeals court agreed with an earlier court’s decision that cybersecurity insurance providers could not deny ransomware coverage under a so-called “war exclusion” for a cybersecurity incident Merck & Co. claimed caused $1.4 billion in losses.

Cybersecurity Insurance

Merck Ransomware Insurance Ruling Helps Clear Fog of Cyberwar

George V. Hulme

Avoid these seven pitfalls when seeking cybersecurity liability insurance; ensure you understand policy terms and conditions, conduct due diligence, and involve the proper stakeholders, among other things.

Cybersecurity Insurance

Cybersecurity Liability Insurance Pitfalls to Avoid

George V. Hulme

Navigating cybersecurity insurance in a recession requires diligence about systemic cybersecurity risks that can cause premiums to rise or insurers to consider an organization uninsurable.

Cybersecurity Insurance

Risk Management

Navigating Cyber Insurance in a Recession

George V. Hulme

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Project Glasswing and the Claude Mythos Preview have caused an upheaval related to vulnerability discovery and exploit development. On Nexus, former NSA Director Adm. Michael S. Rogers introduces some nuance to the discussion. The nuance that isn’t being articulated enough, he says, is that Project Glasswing is largely a defensive effort that does more to level the playing field between threat actors and defenders than we may realize.

Cyber Resilience

Operational Resilience

Vulnerability Management

Exploring Some Nuance on Project Glasswing

ADM. Michael S. Rogers, USN (Ret.)

Cyber Resilience

Risk Management

Vulnerability Management

CISA Alert on EOL Edge Devices Should Also Spark Enhanced CPS Defenses

ADM. Michael S. Rogers, USN (Ret.)

Risk Management

Operational Resilience

Cyber Resilience

Imminent National Cyber Strategy May Lean on Offense at the Expense of Defense

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Cyberattacks against the food and beverage industry are opportunistic and leverage the growth in digitization to exploit previously unmanaged vulnerabilities to disrupt operations.

Food & Beverage

On the Menu: Cybersecurity Risks in the Food and Beverage Industry

George V. Hulme

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Providence CISO Mike Ratliff writes about his organization's adoption of artificial intelligence. While AI is making rapid inroads in terms of reducing the time around low-impact, high-frequency tasks, there's still caution around deep deployments on systems that affect patient care directly. Providence's test-validate-scale model reflects the realities of healthcare, where changes must be introduced carefully to avoid unintended consequences.

Operational Resilience

Risk Management

AI in Healthcare Cybersecurity: How We're Scaling Defense Without Losing Control

ASL Roma 1 CISO Stefano Scaramuzzino and Deloitte’s Fabio Battelli explain the next evolution of cybersecurity and risk governance at Italy’s largest public health authority: canonical risk. The hospital's HOPE framework is the decision layer for this concept, a governed, explainable, and auditable synthesis of technical signals, operational context, and explicit priority logic that inform remediation and mitigation actions.

Cyber Resilience

Operational Resilience

Risk Management

At ASL Roma 1, Canonical Risk Informs Governance, Remediation Actions

Stefano Scaramuzzino

Risk Management

Operational Resilience

Cyber Resilience

Imminent National Cyber Strategy May Lean on Offense at the Expense of Defense

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Internet-facing cyber-physical systems (CPS) are a consequential and structural risk in many modern manufacturing environments, one that can introduce disruption without the need for much sophistication on a threat actor’s part.

Cyber Resilience

Operational Resilience

Exposed Manufacturing Assets a Consequential Risk

AJ Eserjose, Regional Director for Operational Technology Information Sharing and Analysis Center (OT-ISAC), writes about how the information shared among members of a hub such as OT-ISAC creates a predictive resilience. Attack, threat, and risk signals are aggregated from contributions made by different members into comprehensive intelligence that improves overall cyber and operational resilience.

Cyber Resilience

Operational Resilience

Operational Technology

Risk Management

How Collective Intelligence Enhances Predictive Resilience

OT has a cybersecurity skills gap. Leading organizations, however, are responding by building cross-functional IT/OT security teams, investing in OT-specific training, creating hybrid cybersecurity roles, and leveraging managed OT security services to bridge immediate gaps. They are also prioritizing asset visibility, documentation, and standardized processes to reduce reliance on tribal knowledge.

Operational Technology

Operational Resilience

Cyber Resilience

OT Cybersecurity Faces a Skills Gap

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Congress' failure to reauthorize the Cybersecurity Information Sharing Act of 2015 (CISA 2015) signals a fundamental shift in threat intelligence sharing and overall risk management strategies.

Vulnerability Management

Risk Management

Cyber Resilience

Internet of Things

CISO Survival Guide: 4 Steps to Prepare for CISA 2015 Expiration

George V. Hulme

China-nexus threat actors are targeting edge devices that do not support EDR. Adm. Michael Rogers writes that cyber-physical systems could be next since many of the connected OT, IoT, and IoMT devices and sensors also lack EDR protection.

Operational Resilience

Internet of Things

Cyber Resilience

Risk Management

Adversaries' Adaptability is Bad News for Cyber-Physical Systems

ADM. Michael S. Rogers, USN (Ret.)

Amazon's intent to replace humans with robots represents a wave of cyber-physical systems (CPS) security that will need to be implemented not only in the logistics and warehousing industries but also for work-in-process (WIP) inventory in manufacturing and other critical industries.

Cyber Resilience

Internet of Things

Operational Resilience

Operational Technology

Vulnerability Management

Risk Management

Automation Inroads Bring Urgency to CPS Protection

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More than 250 influential cybersecurity leaders from industrial companies, healthcare delivery organizations, and the highest levels of government convened for Claroty’s fourth annual thought leadership conference to share best practices on cyber-physical systems cybersecurity, protection, and resilience strategies.

Cyber Resilience

Operational Resilience

Risk Management

Nexus Conference

CPS Security Leaders Establish Priorities for Resilience at Nexus 2025

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Cyber Resilience

Operational Resilience

Risk Management

Securing the Frontier: Moving Past AI Fear and Toward Systemic Incentives

Providence CISO Mike Ratliff writes about his organization's adoption of artificial intelligence. While AI is making rapid inroads in terms of reducing the time around low-impact, high-frequency tasks, there's still caution around deep deployments on systems that affect patient care directly. Providence's test-validate-scale model reflects the realities of healthcare, where changes must be introduced carefully to avoid unintended consequences.

Operational Resilience

Risk Management

AI in Healthcare Cybersecurity: How We're Scaling Defense Without Losing Control

Internet-facing cyber-physical systems (CPS) are a consequential and structural risk in many modern manufacturing environments, one that can introduce disruption without the need for much sophistication on a threat actor’s part.

Cyber Resilience

Operational Resilience

Exposed Manufacturing Assets a Consequential Risk

See all in Operational Resilience See all in Articles

ICS Advisory founder Dan Ricci explains why a list of operational technology (OT) assets is not an asset inventory. Asset inventories must be organized, updated, and physically validated. Only then can this facet of asset management support enterprise-wide risk management and cyber-physical systems protection programs.

Cyber Resilience

Operational Resilience

Operational Technology

Vulnerability Management

Risk Management

From Inventory to Insight: Turning OT Visibility into Concrete Risk Reduction

AJ Eserjose, Regional Director for Operational Technology Information Sharing and Analysis Center (OT-ISAC), writes about how the information shared among members of a hub such as OT-ISAC creates a predictive resilience. Attack, threat, and risk signals are aggregated from contributions made by different members into comprehensive intelligence that improves overall cyber and operational resilience.

Cyber Resilience

Operational Resilience

Operational Technology

Risk Management

How Collective Intelligence Enhances Predictive Resilience

OT has a cybersecurity skills gap. Leading organizations, however, are responding by building cross-functional IT/OT security teams, investing in OT-specific training, creating hybrid cybersecurity roles, and leveraging managed OT security services to bridge immediate gaps. They are also prioritizing asset visibility, documentation, and standardized processes to reduce reliance on tribal knowledge.

Operational Technology

Operational Resilience

Cyber Resilience

OT Cybersecurity Faces a Skills Gap

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The HHS Office for Civil Rights proposes substantial rule changes to the long-standing Health Insurance Portability and Accountability Act (HIPAA) Security Rule. While details on the proposed rule changes remain unclear, HHS plans to issue a Notice of Proposed Rulemaking (NPRM) by the end of the year. These changes are believed to be the most substantial changes since the HIPAA Security rule went into effect in 2003

Significant Changes to HIPAA Security Rule on the Way

George V. Hulme

Mike Ratliff, AVP Security Engineering and Operations at Providence, writes about five steps healthcare delivery organizations should take to mitigate the risk of ransomware and extortion-based attacks.

Cyber Resilience

5 Things Hospitals Can Do to Mitigate Threats of Ransomware

Resilience, Recovery Strategies to Combat Ransomware and Extortion

ADM. Michael S. Rogers, USN (Ret.)

See all in Ransomware See all in Articles

Cyber Resilience

Operational Resilience

Risk Management

Securing the Frontier: Moving Past AI Fear and Toward Systemic Incentives

Providence CISO Mike Ratliff writes about his organization's adoption of artificial intelligence. While AI is making rapid inroads in terms of reducing the time around low-impact, high-frequency tasks, there's still caution around deep deployments on systems that affect patient care directly. Providence's test-validate-scale model reflects the realities of healthcare, where changes must be introduced carefully to avoid unintended consequences.

Operational Resilience

Risk Management

AI in Healthcare Cybersecurity: How We're Scaling Defense Without Losing Control

ICS Advisory founder Dan Ricci explains why a list of operational technology (OT) assets is not an asset inventory. Asset inventories must be organized, updated, and physically validated. Only then can this facet of asset management support enterprise-wide risk management and cyber-physical systems protection programs.

Cyber Resilience

Operational Resilience

Operational Technology

Vulnerability Management

Risk Management

From Inventory to Insight: Turning OT Visibility into Concrete Risk Reduction

See all in Risk Management See all in Articles

Current OT cybersecurity budgeting approaches reflect a misalignment of prioritizing surface-level defenses over architectural shortcomings. Instead, CISOs should demand vendors deliver products that are secure by design, and address systemic failures over a reactive approach to the security of cyber-physical systems.

Operational Technology

Risk Management

The Economics of OT Cybersecurity: Are We Investing in the Wrong Priorities?

Enterprises often are blind to the use of open source software in commercial and homegrown software development. Vulnerabilities and other weaknesses in OSS deployments are significant exposures that must be managed and mitigated.

Vulnerability Management

Risk Management

Visibility, Governance Key to Managing Open Source Risk

George V. Hulme

Technical debt in OT leads to increased operations costs as teams fight to maintain outdated systems, and security teams struggle to keep those same systems secure, often through compensating controls.

Operational Technology

Getting Strategic Against Technical Debt in OT

George V. Hulme

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ICS Advisory founder Dan Ricci explains why a list of operational technology (OT) assets is not an asset inventory. Asset inventories must be organized, updated, and physically validated. Only then can this facet of asset management support enterprise-wide risk management and cyber-physical systems protection programs.

Cyber Resilience

Operational Resilience

Operational Technology

Vulnerability Management

Risk Management

From Inventory to Insight: Turning OT Visibility into Concrete Risk Reduction

Project Glasswing and the Claude Mythos Preview have caused an upheaval related to vulnerability discovery and exploit development. On Nexus, former NSA Director Adm. Michael S. Rogers introduces some nuance to the discussion. The nuance that isn’t being articulated enough, he says, is that Project Glasswing is largely a defensive effort that does more to level the playing field between threat actors and defenders than we may realize.

Cyber Resilience

Operational Resilience

Vulnerability Management

Exploring Some Nuance on Project Glasswing

ADM. Michael S. Rogers, USN (Ret.)

Data centers have been targeted for kinetic attacks during the ongoing Iran war, and given their strategic prioritization during the conflict, they could be targeted for cyberattacks as well. Nexus contributor James LaBonty explains the risk and potential vulnerabilities, including building management systems and other cyber-physical systems.

Cyber Resilience

Operational Technology

Risk Management

Vulnerability Management

Operational Resilience

Protecting Physical, Digital Security of Data Centers During Conflict

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The Department of Defense has issued comprehensive guidance requiring all organizational units to implement zero-trust security principles across operational technology (OT) systems, marking a fundamental shift in how the military secures critical infrastructure from power grids to manufacturing control systems.

Operational Technology

Cyber Resilience

Pentagon Mandates Zero Trust Security Framework for Operational Technology Environments

George V. Hulme

The convergence of IT and OT systems, primarily driven by the deployment of IIoT (industrial Internet of Things), cloud computing, and the need for remote monitoring, has fundamentally altered the OT architecture that the Purdue Model was initially designed to help manage.

Risk Management

Operational Resilience

Operational Technology

Is It Time to Rethink the Purdue Model?

George V. Hulme

Operational Resilience

Operational Technology

Poor Visibility Still a Drag on Secure Third-Party Remote Access

George V. Hulme

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Nexus Digest Episode 4 features ICS Advisory Project founder Dan Ricci. Ricci describes the need to distinguish between asset lists and actual asset inventories, what those differences are, and how to make the most of the information made available. Device data such as firmware versions, protocol identification, and more are vital to other aspects of the OT and cyber-physical systems protection program, including exposure management and segmentation initiatives.

Operational Resilience

Cyber Resilience

Nexus Digest: Dan Ricci on Turning Visibility into Risk Reduction

Nexus Digest Episode 4 features ICS Advisory Project founder Dan Ricci. Ricci describes the need to distinguish between asset lists and actual asset…

Jon Holzbauer, OT systems manager at Silgan Containers, is featured in Episode 3 of Claroty Nexus Digest. Jon discusses the skills gap between IT security teams and OT asset operators as these two distinct operational disciplines converge. He also describes the challenges and conflicting priorities that emerge in converged environments, and how to navigate those.

Cyber Resilience

Operational Resilience

Operational Technology

Nexus Digest: Jon Holzbauer on CPS Security Skills Gap

Jon Holzbauer, OT systems manager at Silgan Containers, is featured in Episode 3 of Claroty Nexus Digest. Jon discusses the skills gap between IT security…

Former Pfizer global head of automation engineering Jim LaBonty is featured in Episode 2 of Nexus Digest. Jim discusses a recent article he wrote on the interlock between data centers and modern manufacturing facilities. He describes their dependencies and how cybersecurity fits in these relationships.

Vulnerability Management

Risk Management

Nexus Digest: Jim LaBonty on Data Center and Manufacturing Cybersecurity

Former Pfizer global head of automation engineering Jim LaBonty is featured in Episode 2 of Nexus Digest. Jim discusses a recent article he wrote on the…

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On this episode of the Nexus Podcast, Krista Arndt, Associate Chief Information Security Officer (CISO) at the St. Luke's University Health Network of Pennsylvania and New Jersey, explains how healthcare's rapid adoption of technology has created cybersecurity exposures that must be mitigated. Compensating controls such as microsegmentation have also enabled innovative new procedures that improve patient care.

Cyber Resilience

Operational Resilience

Nexus Podcast: Krista Arndt on Healthcare Cyber Resilience

Cyber Resilience

Operational Resilience

Operational Technology

Risk Management

Vulnerability Management

Nexus Podcast: Ric Derbyshire on Living-Off-the-Plant OT Cyberattacks

Rapid7 Principal Security Research (IoT) lead Deral Heiland joins the Nexus Podcast to discuss work his team did on how attackers might weaponize cellular-based IoT. Rapid7 conducted three phases of this research, with the most recent digging into how attackers with access to these systems can abuse them to gain unauthorized access, potentially exfiltrate critical data, or pivot into backend network infrastructure.

Internet of Things

Vulnerability Management

Risk Management

Operational Resilience

Nexus Podcast: Deral Heiland on Weaponizing Cellular-Based IoT

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Archive

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Operational Technology

NSA's ELITEWOLF Signatures Detect Malicious Activity in OT Environments

George V. Hulme

A new extension to the open source Caldera adversary emulation platform tailored for threats to operational technology (OT) called Caldera for OT features plugins for dnp, Modbus, and BACnet, three popular OT protocols that are prevalent in many commercial products regardless of industry.

Operational Technology

Nexus Podcast: MITRE on Caldera for OT

Operational Technology

AI Holds Promise for Protecting OT Environments

George V. Hulme

Operational Technology

Operational Resilience

Overcoming Inherent Design and Security Limitations of OT Devices

Juan Piacquadio

Operational Technology

OT Asset Visibility: A Foundation for Secure Operations

George V. Hulme

Operational Technology

Vulnerability Management

Why ICS Vulnerabilities Do Matter

The inherent security of new devices and software associated with managing the grid is shipping natively with better code and design quality, cutting down on commodity vulnerabilities.

Operational Technology

Bulk Power System Risks Span Complexity, Vulnerabilities, Advanced Actors

George V. Hulme

Cyber-informed engineering ensures the design, manufacture, and deployment of new OT and critical infrastructure assets — enough that these assets are reasonably secure from cyberattacks and remain reliable and resilient.

Cyber Resilience

Operational Technology

Cyber-Informed Engineering: A Way Toward More Resilient OT Systems

George V. Hulme

Team82 researcher Noam Moshe describes the eight vulnerabilities found in Teltonika RUT routers and in its cloud management platform, the Teltonika Remote Management System, and three distinct attack vectors that emerged from this research.

Operational Technology

Nexus Podcast: Noam Moshe on Teltonika 4G IIoT Router Cybersecurity Research

Security leaders newly introduced to OT should have a punch list of things to familiarize themselves with before challenges become overwhelming and insurmountable.

Operational Technology

Risk Management

Cybersecurity Punch List for CISOs Securing Converged IT/OT Environments

ADM. Michael S. Rogers, USN (Ret.)

Take a pragmatic approach to patching operational technology environments; doing so addresses OT's unique vulnerability management challenges.

Vulnerability Management

Operational Technology

‘One Does Not Simply Patch OT’

Technical debt broadly refers to having old technology in place that causes problems later on, such as increased maintenance, lower productivity, and software or system reliability.

Operational Technology

Technical Debt in OT Environments: How It's Different and Why it Matters

George V. Hulme

Latest on Nexus Podcast

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The Nexus podcast features conversations with security leaders, researchers, and experts sharing their expertise on cyber-physical systems security.

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On this episode of the Nexus Podcast, Krista Arndt, Associate Chief Information Security Officer (CISO) at the St. Luke's University Health Network of Pennsylvania and New Jersey, explains how healthcare's rapid adoption of technology has created cybersecurity exposures that must be mitigated. Compensating controls such as microsegmentation have also enabled innovative new procedures that improve patient care.

Cyber Resilience

Operational Resilience

Nexus Podcast: Krista Arndt on Healthcare Cyber Resilience

Rapid7 Principal Security Research (IoT) lead Deral Heiland joins the Nexus Podcast to discuss work his team did on how attackers might weaponize cellular-based IoT. Rapid7 conducted three phases of this research, with the most recent digging into how attackers with access to these systems can abuse them to gain unauthorized access, potentially exfiltrate critical data, or pivot into backend network infrastructure.

Internet of Things

Vulnerability Management

Risk Management

Operational Resilience

Nexus Podcast: Deral Heiland on Weaponizing Cellular-Based IoT

Operational Technology

Vulnerability Management

Nexus Podcast: Rob King on OT Asset Exposures, Mitigations