It's one of the six components of Shared Progress. It means the ability and willingness to explore unknowns or pilot new approaches based on a shared long-term vision. It allows for experimenting and openness to possible failures or setbacks in the service of learning and new value creation.
Prudent risks expand possibilities through partnership by cultivating environments where people feel equipped to navigate challenges together, and conditions change. Prudent risk-taking is an opportunity for shared progress—and part of the Shared Progess Framework.
For more detailed information about them, check Enterprise Agility Fundamentals, Chapter 3, page 149.