Closed-loop security
A security model that connects sensing, decision, authorized action, verification, and evidence.
Resources
Use precise language for accountable security.
Public definitions for the operating concepts used across the Spacetime site.
Curated resources
Definitions that reduce ambiguity.
These terms describe public operating principles. They do not expose internal names or implementation mechanisms.
Read more →
Human-on-the-loop
People supervise the system and remain able to intervene when judgment or authority is required.
Two-party control
Two authenticated approvers are required through the interface for designated critical actions.
Bounded, governed response
A policy-constrained response with approval, verification, and a recoverable direction.
Purely defensive
No offense, penetration testing, or exploitation, by design.
Evidence architecture
The conceptual relationship among intent, authority, action, and observed outcome that helps a decision remain reviewable.
Important context
Terminology boundary
Public terms are intentionally outcome-focused. Internal project names, schemas, scores, thresholds, and mechanism details are not part of this glossary.
Bring the question your evaluation needs to answer.
We’ll help you find the right public material or frame a focused briefing.
Explore briefings →