Operational technology systems are under relentless assault, facing increasingly sophisticated and impactful threats. Recent analysis reveals a significant uptick in attacks targeting industrial control systems and critical infrastructure. Among the most pressing dangers are ransomware campaigns, which continue to evolve and pose a direct threat to operational continuity and safety.
Beyond network-borne threats, a perhaps less discussed but equally critical vulnerability lies with removable media. Data indicates that USB drives remain a surprisingly effective initial access vector for malicious actors seeking to penetrate even air-gapped or seemingly isolated OT environments. Attackers leverage these simple devices to introduce malware, bypass network defenses, and establish a foothold within sensitive operational networks.
The consequences of these attacks are severe and far-reaching. Successful breaches can lead to widespread production outages, compromise physical safety, inflict substantial financial damage, and even disrupt critical supply chains. Protecting these essential systems requires a multilayered security approach that includes robust network segmentation, continuous vulnerability management, vigilant security monitoring, and, crucially, enforcing strict physical security protocols and policies regarding the use of removable media within the OT environment. Organizations must prioritize securing these systems to maintain resilience and ensure operational integrity in the face of growing cyber threats.
Source: https://www.helpnetsecurity.com/2025/06/06/honeywell-2025-cyber-threat-report/
