RS Glossary
Assumed Isolation
Assumed isolation is the belief that a test or trial system is cut off from live systems and real data, held without current evidence that the separation still holds.
- Review state
- Reviewed in POC
- Freshness
- Current
- Version
- 3
- Assumed Isolation
Remember it this waySandbox is a claim until tested.
In plain language
People treat a system as a sandbox because it was labeled, configured, or described that way. They do not keep checking whether credentials, networks, tools, data, or deployment paths still connect it to production.
Why it matters
Isolation can decay as systems change. Safety depends on current evidence, not the memory of an earlier architecture decision.
Example
A test agent is believed to use mock services, but a later configuration change gives it a production API credential through a shared secret store.
Common misconception
Assumed isolation is not verified isolation. A diagram, label, or original setup does not establish the present boundary.
Related terms
Sources
- NIST SP 800-53 Rev. 5, *Security and Privacy Controls for Information Systems and Organizations*control SC-39 grounds the technical meaning of process isolation in separate execution domains.
- NIST SP 800-137, *Information Security Continuous Monitoring*explains why control effectiveness requires ongoing visibility and reassessment rather than a one-time assumption. Together these sources support the mechanism behind this Renaissance Solutions term; neither source uses the label “Assumed Isolation.”
Learn more
- Pair with [[independent-verification|Independent Verification]] and [[state-transition-protocol|State Transition Protocol]].
Public history
25 recorded events · 25 public summaries
A potential shared concept was discussed and selected for initial glossary drafting.
The captured candidate received a complete initial draft and entered section-level human review.
Radar reviewed the initial definition draft for human consideration.
Radar reviewed the initial plain-language-explanation draft for human consideration.
Radar reviewed the initial why-it-matters draft for human consideration.
Radar reviewed the initial example draft for human consideration.
Radar reviewed the initial common-misconception draft for human consideration.
Radar reviewed the initial remember-it-this-way draft for human consideration.
Radar reviewed the initial related-terms draft for human consideration.
Radar reviewed the initial sources draft for human consideration.
Radar reviewed the initial learn-more draft for human consideration.
A proposal was opened for section-level human review while preserving the current version.
A human reviewer opened a proposed revision while preserving the current approved or captured version.
definition approved by a human reviewer.
plain-language-explanation approved by a human reviewer.
why-it-matters approved by a human reviewer.
example approved by a human reviewer.
common-misconception approved by a human reviewer.
remember-it-this-way approved by a human reviewer.
related-terms approved by a human reviewer.
sources approved by a human reviewer.
learn-more approved by a human reviewer.
All section gates are approved; content version 1 is now a fully approved term.
Definition review recorded as replace.
Sources review recorded as approve-proposed.
Source: vault/Glossary/terms/assumed-isolation/term.md · sha256:1c61f9074c595bc92feaacc448fea56bca6cef4e2b4b097482e7e8a0417a3d3d · Release: rs-glossary-glossary-team-poc-0.5.5-2026-09-02