This conversation with two members of a relatively new whistleblowing platform—we called them Sarah and Cleo to preserve their anonymity—intends to present the latter. It allows people working on development projects in London to leak information that can be used by local inhabitant associations to organize in time their defense against their planned eviction. We discuss the platform both theoretically—the conceptual approach to disobedience will be presented in the next conversation with Elena Loizidou—and practically, through the perspective of (often young) architects working in development projects, and the ones of local associations through the workshops organized by Concrete Action. Information ...