A public workshop on cybersecurity for resilient manufacturing environments was held in Brussels, on October 17th 2018, organized by DG CONNECT, ECSO and EFFRA. Its objectives were: a) drawing attention to cybersecurity challenges in manufacturing and identifying potential gaps, b) bringing relevant stakeholders together, and c) to raise awareness on existing solutions, activities and research agendas. Cybersecurity challenges brought by all participants were mainly related to existing infrastructures (legacy systems, connectivity and applications), smart manufacturing developments ( Industry 4.0, massive amounts of data, increasing automation, IoT, autonomous systems, integrated and autonomous manufacturing, digital platforms), the ecosystems (integrating supply & demand) and the human factor (involving operators, cybersecurity experts and the IT – OT discrepancies). Existing challenges are complex, involve multiple stakeholders with particular impact on the manufacturing operations, involve processes, people, procedures and technologies, with potential impact reaching far beyond the boundaries of the manufacturing environment. While many existing cybersecurity solutions exist, the workshop aimed to identify some specific approaches related to the manufacturing cybersecurity and resilience challenges.