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Recent reports from international security agencies and CERTs have revealed more than 40 documented ransomware attacks targeting industrial OT (Operational Technology) systems worldwide in recent months. Affected organizations include
Several of these incidents resulted in significant production disruptions - some lasting several days. Key systems affected included engineering workstations, SCADA servers, HMI projects, and centrally stored automation data.
Many of these attacks follow a recurring pattern:
In many cases, attackers exploited known but unpatched vulnerabilities - often in legacy systems that have been running for years without ever undergoing a structured security assessment.
In early 2024, a North American food manufacturer was the target of a coordinated ransomware attack. The attackers gained access through the IT infrastructure and quickly moved laterally into the production network. Within hours, key systems controlling production were encrypted.
The impact was severe: a complete production shutdown lasting three weeks, with more than 200 employees temporarily furloughed. Most concerning, there were no up-to-date OT backups and no tested recovery strategy in place.
This incident highlights common weaknesses in many industrial operations - insufficient segmentation between IT and OT, outdated systems, and a lack of structured backup and recovery processes for automation components.
OT environments remain a blind spot in many cybersecurity strategies. Often, these systems have evolved over decades and consist of a patchwork of components from multiple vendors running different versions of software and outdated firmware.
In practice, many organizations lack a complete asset inventory - meaning there's no centralized view of what devices, versions, and configurations are in use and where. Without this visibility, even known vulnerabilities listed in public CVE databases go unnoticed. As a result, critical vulnerabilities persist for years-until they're exploited.
If you don't know your infrastructure, you can't protect it. And if you don't assess critical vulnerabilities, you won't understand the risk until it's too late.
There are five key takeaways from the documented attacks:
True resilience is built on technical visibility, structured change and vulnerability management, and clearly defined processes. Organizations that embrace these principles don't just reduce risk-they increase their responsiveness and secure the future of their operations.