A leading European dredging operator needed fleet-wide OT cybersecurity aligned with IACS UR E26/E27 while managing overlapping network subnets, intermittent satellite connectivity, non-specialist crews, and geographically dispersed vessels. Radiflow deployed its OT security portfolio across the fleet: iSID provides onboard passive monitoring and anomaly detection, vSAP smart collectors distinguish identical IP addresses using GRE tunneling, iCEN gives the shore-based SOC centralized visibility, and CIARA performs risk assessment and attack-path simulation using MITRE ATT&CK. The solution operates even with limited or no connectivity and simplifies response through visual alerts and playbooks. The deployment delivered full fleet OT visibility, regulatory alignment, continuous protection in

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