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Honeywell’s 2026 OT Cybersecurity Benchmark Report found that industrial organizations significantly overestimate their operational-technology security maturity: 88% of 603 critical-infrastructure security, risk and operations leaders rated their programs mature or design-led, but only 21% maintained a complete OT asset inventory and 33% had fully integrated OT telemetry and response into a centralized SOC. Legacy controllers without authentication or encryption were identified as the principal readiness obstacle, while connected building-automation and IoT assets often remain outside continuous monitoring.
The exposure has operational consequences. Significant OT incidents caused an average 16.2 hours of downtime, and some respondents estimated losses above $100,000 per hour; organizations with more complete inventories reported faster recovery. The findings follow remote compromises of internet-facing PLCs at water systems in at least seven U.S. states, which disrupted monitoring or controls and degraded operations, with the FBI and EPA investigating potential Iran-backed involvement. AI is widely used to support analysts, but autonomous use remains limited: only 23% reported using agentic AI for threat detection.
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Honeywell released its 2026 OT Cybersecurity Benchmark Report, which found that 88% of surveyed leaders described their OT-security programs as mature or design-led, while only 21% reported a complete OT asset inventory. The report also found significant OT incidents caused an average of 16.2 hours of downtime among affected organizations.
The FBI and EPA said they were investigating whether the water-system PLC intrusions were linked to Iran-backed hackers.
By early August, attackers had remotely accessed internet-facing programmable logic controllers used to operate pumps and valves at water systems in at least seven U.S. states. Some operators lost monitoring or control capabilities, and some water operations degraded.
Honeywell surveyed 603 security, risk, and operations leaders in critical-infrastructure organizations during May and June for its OT cybersecurity benchmark research.
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Industrial and manufacturing organizations continue to face significant **operational technology (OT)** security risk as connected control systems, IoT devices, and legacy infrastructure expand the attack surface. A Siemens Energy report cited by *TechRepublic*, based on Ponemon Institute survey data, found that **77%** of respondents said an OT security compromise in the past 12 months led to loss of confidential information or operational disruption, while **52%** said a successful exploit against their industrial control systems is likely within the next year. Respondents also estimated that **41%** of OT attacks go undetected, with many organizations taking more than a month to detect incidents and an average of seven months to recover. The broader picture is that smart factories are still struggling with basic cyber resilience as modernization outpaces security controls. In an interview with *Help Net Security*, Packsize CSO Troy Rydman said unmanaged **IoT** devices, outdated legacy systems, and human-targeted attacks such as phishing and social engineering remain major weaknesses in factory environments. He also highlighted the persistent tradeoff between production uptime and security requirements, underscoring that industrial operators are still balancing business continuity with the need to reduce exposure across connected devices and older operational systems.
Jun 29, 2026
Government and industry reporting warns that operational technology and industrial control systems remain dangerously exposed through weak remote access, poor segmentation, and internet-facing devices, giving both state-backed and criminal actors paths into critical infrastructure. A joint **CISA/NSA** advisory said adversaries routinely exploit legacy OT environments, public system information, and insecure remote connections to move from reconnaissance to manipulation of physical processes, while a separate **CISA/FBI** alert tied Chinese state-sponsored intrusions to U.S. natural gas pipeline operators and said the actors stole SCADA and ICS information to build capabilities for future disruption. Recent exposure research also found **6,300** internet-reachable industrial-control and building-automation devices near U.S. data centers, including **BACnet**, **Fox/Niagara**, **Modbus**, and Vertiv/Liebert systems that could affect cooling and power operations. The threat has already translated into real-world disruptive activity and increasingly specialized tooling. Dragos reported **FrostyGoop**, a Golang-based ICS malware that communicates over **Modbus TCP** and was likely used to disrupt heating services in Lviv, Ukraine, after attackers apparently entered through an internet-facing router and traversed poorly segmented networks. Other cited incidents and assessments include Israel’s thwarted attempt against water facilities, persistent Russian probing of U.S. power infrastructure, and leaked-document analysis describing a Russian capability designed to attack rail and petrochemical control systems through telecommunications access. Across the reporting, the common defensive priorities were to eliminate direct public exposure, harden and inventory remote access, enforce MFA, replace default credentials, patch supported systems, restrict engineering tools, and closely monitor OT network and protocol activity.
Aug 15, 2026
Security reporting and expert commentary warn that **operational technology (OT)** environments remain highly exposed due to fragile access controls and that attacker capability is trending toward more dangerous, process-aware operations. Lessons drawn from the 2015 **Ukraine power grid** disruption emphasize that remote connectivity, vendor access, and broad VPN permissions can become the “soft underbelly” of critical infrastructure, with recurring real-world examples of disruption tied to **misused remote access and stolen credentials** (including the **Colonial Pipeline** shutdown following a compromised password). The core takeaway is that OT systems are no longer “too specialized” to be targeted, and that common enterprise intrusion paths—credential compromise and remote access abuse—continue to translate into operational impact when they bridge into industrial environments. Separately, OT-focused threat analysis highlights early signs that attackers are gaining the “process comprehension” historically missing from many intrusions into industrial systems. A forthcoming RSA Conference 2026 presentation is expected to demonstrate **“living-off-the-plant”** techniques—analogous to living-off-the-land in IT—where adversaries leverage native industrial tooling and legitimate functions inside plants to blend in and potentially manipulate physical processes. The reporting argues that “security by obscurity” (attackers’ unfamiliarity with bespoke/legacy OT) has limited the severity of many incidents so far, but that this advantage is eroding as adversaries become more comfortable operating within industrial environments, increasing the risk of more consequential OT attacks.
Jun 29, 2026