This lecture introduces the concept of ethical risk assessment in software design, focusing on the Digital Ethics Canvas developed by Cécile Hardebolle and collaborators. The canvas addresses ethical debt, beneficence, non-maleficence, privacy, sustainability, fairness, and empowerment in software systems, emphasizing the importance of evaluating potential harms and benefits. Through benefit-risk analysis and ethical lenses, the lecture guides viewers on using the canvas to assess risks, rethink system features, and make informed decisions at different stages of software development.