Can Maritime OT networks pose a risk even if remote access capability is not utilized?

Maritime Operational Technology (OT) networks can indeed pose risks even when remote access capabilities are not used. These networks are integral to managing critical systems onboard vessels, such as navigation, engine control, and cargo management. They often rely on interconnected devices and systems which can be vulnerable to various threats, including malware and unauthorized access, regardless of whether remote access is employed.

The connected nature of OT devices means that they can be susceptible to internal threats, such as inadvertent misconfigurations, insider attacks, or attacks from compromised physical devices. Even if a vessel does not have remote access capabilities, if an insider or malicious actor gains physical access to the network, they could exploit vulnerabilities to disrupt operations, steal sensitive data, or cause other types of harm.

Furthermore, these networks may not always have the same robust security measures in place as traditional IT networks. Operational protocols, user management, and incident response capabilities might be less mature, potentially exacerbating risks that exist independent of remote access.

In summary, the risks associated with maritime OT networks are inherent due to their operational nature and interconnectivity, highlighting the necessity for comprehensive security measures regardless of whether remote access is in use.