Reference · GlossaryBlast radiusHow much damage one failure or leak can cause — users affected, data exposed, budget burned.On this pageWhen to useWhen not toExample#When to useDesigning scoped API keys, feature flags, and network isolation for AI services.#When not toOver-segmenting tiny solo projects — balance safety with shipping speed.#ExampleSeparate keys per environment so a leaked dev key cannot spend prod token budget.Learn by doing → Learn by doing →Related termsIncident responseSecrets managerKill switch← All terms