What are some signs that a ship might be experiencing a cyber incident?

Irregular navigation readings are a significant indicator of a potential cyber incident on a ship. When a vessel experiences anomalous behavior in its navigation systems, such as sudden changes in position, erratic course deviations, or discrepancies between different navigation instruments, it could signal that cyber attackers have compromised the ship’s systems. Cyber incidents can manipulate electronic navigation aids, including Global Positioning System (GPS) functions, which can lead to dangerous situations at sea.

Other signs like unfamiliar crew behavior or frequent equipment failures might raise concerns, but they do not specifically indicate a direct link to cyber incidents. Inconsistent weather conditions also do not align with cybersecurity concerns, as they are a natural phenomenon rather than a system-based error. Therefore, recognizing irregular navigation readings is critical in identifying potential cyber threats to the vessel.