Cybersecurity concerns are one of the significant side effects of an increasingly interconnected world, which inevitably put economic factors into perspective, either directly or indirectly. In this context, it is imperative to understand the significant dependencies between complex and distributed systems (e.g., supply-chain), as well as security and safety risks associated with each actor. This paper proposes SEConomy, a strictly step-based framework to measure economic impact of cybersecurity activities in a distributed ecosystem with several actors. Through the mapping of actors, responsibilities, inter-dependencies, and risks, it is possible to develop specific economic models, which can provide in a combined manner an accurate picture of cybersecurity economic impacts.