The blocking of the Ever Given in the Suez Canal has once again illustrated how vulnerable global supply chains are and how one local incident can have a full-scale ‘butterfly effect. Cybercrime brings unexpected dimensions to this vulnerability. In this session, we will discuss a recent maritime cybercase with an unexpected Ocean's Eleven-like plot. We will explore how nautical port services like dredging and towage are cyber-proofing themselves to ensure secure operations and avoid local incidents having potentially worldwide implications.