Seaports are key logistic hubs that manage vast volumes of data and coordinate operations dependent on stable information and industrial systems (OT). Increasingly frequent attacks on critical infrastructure make securing networks, PCS systems, PMS, and cargo handling operations against cyber threats a priority. Our solution includes monitoring network traffic, real-time threat detection, protection against DDoS attacks, and access control to port systems. The system automatically analyzes data for anomalies, supports incident management, and ensures compliance with ISO 27001, NIS2 standards and IMO guidelines on cybersecurity. By integrating with the existing port infrastructure, it is possible to prevent incidents, minimize the impact of attacks, and respond quickly to any irregularities in port systems.