Cyberattacks on industry and critical infrastructure are on the rise across the globe. Targets also include ships, which, by transporting billions of tons of goods around the world each year, form part of international supply chains — yet their on-board IT systems often lack secure protection. To raise awareness of the risks of inadequate cybersecurity at sea and to help develop defensive solutions for guarding against cyberattacks, the Maritime Cyber Security research group at the Fraunhofer Institute for Communication, Information Processing and Ergonomics FKIE has teamed up with the Fraunhofer Center for Maritime Logistics and Services CML to set up a modular maritime security lab. This simulates cyberattacks on ships to find ways to detect and defend against attacks.