Every stage specifies the assurance evidence it must leave behind — detection timestamps, named-owner decision records, restore timings — so the drill ends in proof, not just discussion.
What is an assurance drill?
An assurance drill is a tabletop exercise built around one named crown jewel service, run stage by stage against the clock, with facilitator injects tuned to your organisation and sector. Where most exercises stop at discussion, this one does not: at every stage, the drill specifies the assurance evidence participants must produce — a detection timestamp, a decision record with a named owner, a measured restore timing — rather than a verbal account of what the team believes it would do. Recovery is not assumed because a plan exists on paper; it is proven because the drill leaves evidence behind. The approach is based on the Drill Playbooks method set out in the forthcoming book Invisible Risks.
