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Practitioners — Public Auditors · Last updated 11 Jun 2026 · Hallucination Register
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Finding#1, KC3 Basel carve-out condition fabricated with KC4 liquidity test

RLB Citation ID: RLB-F-INT-BIS-CPMI-IOSCO-PFMI-L3-GENERAL-BUSINESS-RISK-2025-Q002
AI's failure:Exposed Fabrication Risk for Public Auditors:Wrong deliverable
What the RLB Specialist Panel found
For Claude Opus 4.7 (web search on)
Question (paraphrased to protect IP)

Under PFMI Principle 15 Key Consideration 3, what is the specific condition that governs whether equity held under international risk-based capital standards (e.g. Basel/CRD) can be counted towards an FMI's liquid net assets funded by equity requirement?

RLB's analysis

The model generated a two-part compound condition, a KC4 liquidity requirement and a non-duplication-across-Principles constraint, that does not appear in the regulator's text. The published rule states a single permissive condition framed around avoiding duplicate capital requirements. The model's formulation is internally coherent and draws on real concepts from adjacent provisions of the PFMI framework, but it applies them to this Key Consideration in a way the standard does not support, producing a materially more restrictive and structurally different rule than the regulator published.

AI Head's analysis — what weakness in the AI model caused this

This failure implicates training-data representation of PFMI Principle 15's Key Consideration structure: the model generated a two-part compound condition drawing on real concepts from adjacent Key Considerations (KC4 liquidity, cross-Principles non-duplication) and applied them to KC3 in a way the standard does not support. The subsystem gap is verbatim-constraint anchoring — the model's schema for how this provision works overrode the regulator's actual published language, producing a materially more restrictive rule that does not exist.

For Claude Sonnet 4.6 (web search on)
Question (paraphrased to protect IP)

Under PFMI Principle 15 Key Consideration 3, what is the specific condition that governs whether equity held under international risk-based capital standards (e.g. Basel/CRD) can be counted towards an FMI's liquid net assets funded by equity requirement?

RLB's analysis

The model generated a two-part compound condition, a KC4 liquidity requirement and a non-duplication-across-Principles constraint, that does not appear in the regulator's text. The published rule states a single permissive condition framed around avoiding duplicate capital requirements. The model's formulation is internally coherent and draws on real concepts from adjacent provisions of the PFMI framework, but it applies them to this Key Consideration in a way the standard does not support, producing a materially more restrictive and structurally different rule than the regulator published.

AI Head's analysis — what weakness in the AI model caused this

This failure implicates training-data representation of PFMI Principle 15's Key Consideration structure: the model generated a two-part compound condition drawing on real concepts from adjacent Key Considerations (KC4 liquidity, cross-Principles non-duplication) and applied them to KC3 in a way the standard does not support. The subsystem gap is verbatim-constraint anchoring — the model's schema for how this provision works overrode the regulator's actual published language, producing a materially more restrictive rule that does not exist.

Impact for Public Auditors in international jurisdictions advising on the Implementation Monitoring of the PFMI: Level 3 Assessment on General Business Risks

An auditor relying on this AI response would advise that Basel/CRD equity can only count toward the KC3 LNAFE buffer if the underlying assets also satisfy a KC4 liquidity test, a condition that appears nowhere in KC3. A CCP applying this fabricated eligibility screen would potentially exclude compliant equity capital from its LNAFE calculation, understating its buffer and generating a false compliance gap. The client loses a correct eligibility analysis; the auditor's sign-off references a standard that does not exist, exposing the opinion to immediate challenge against the PFMI source text.

References — raw findings (per AI model)
This finding also affects
Next finding → Finding#2, Six-month LNAFE floor inflated into invented dual-track minimum
Cite this finding

Each finding has a stable Citation ID (RLB-F-… for aggregated case-study findings, RLB-H-… for raw per-model hallucinations) — like a DOI, the ID always resolves to the canonical finding even if URLs change.

RLB Citation ID: RLB-F-INT-BIS-CPMI-IOSCO-PFMI-L3-GENERAL-BUSINESS-RISK-2025-Q002
Plain text Download
RegLeg Specialist Panel (2026). "Finding#1, KC3 Basel carve-out condition fabricated with KC4 liquidity test — Practitioners — Public Auditors." Citation ID: RLB-F-INT-BIS-CPMI-IOSCO-PFMI-L3-GENERAL-BUSINESS-RISK-2025-Q002. RegLegBrief AI Hallucination Research, published 2026-06-11. https://reglegbrief.com/regulators/j1/INT/BIS-CPMI/CPMI-IOSCO-PFMI-L3-GENERAL-BUSINESS-RISK-2025/practitioners/public-auditors/finding/INT-BIS-CPMI-INT-001-CPMI-IOSCO-PFMI-L3-GENERAL-BUSINESS-RISK-2025-v1-002/
APA 7th edition Download
RegLeg Specialist Panel. (2026). Finding#1, KC3 Basel carve-out condition fabricated with KC4 liquidity test [Hallucination finding RLB-F-INT-BIS-CPMI-IOSCO-PFMI-L3-GENERAL-BUSINESS-RISK-2025-Q002]. RegLegBrief AI Hallucination Research. https://reglegbrief.com/regulators/j1/INT/BIS-CPMI/CPMI-IOSCO-PFMI-L3-GENERAL-BUSINESS-RISK-2025/practitioners/public-auditors/finding/INT-BIS-CPMI-INT-001-CPMI-IOSCO-PFMI-L3-GENERAL-BUSINESS-RISK-2025-v1-002/
Bluebook / OSCOLA (US + UK legal) Download
RegLeg Specialist Panel, Finding#1, KC3 Basel carve-out condition fabricated with KC4 liquidity test [RLB-F-INT-BIS-CPMI-IOSCO-PFMI-L3-GENERAL-BUSINESS-RISK-2025-Q002], RegLegBrief AI Hallucination Research (June 11, 2026), https://reglegbrief.com/regulators/j1/INT/BIS-CPMI/CPMI-IOSCO-PFMI-L3-GENERAL-BUSINESS-RISK-2025/practitioners/public-auditors/finding/INT-BIS-CPMI-INT-001-CPMI-IOSCO-PFMI-L3-GENERAL-BUSINESS-RISK-2025-v1-002/.
BibTeX Download
@misc{reglegbrief_RLB_F_INT_BIS_CPMI_IOSCO_PFMI_L3_GENERAL_BUSINESS_RISK_2025_Q002,
  author    = {RegLeg Specialist Panel},
  title     = {Finding#1, KC3 Basel carve-out condition fabricated with KC4 liquidity test},
  year      = {2026},
  publisher = {RegLegBrief AI Hallucination Research},
  note      = {Hallucination finding Citation ID: RLB-F-INT-BIS-CPMI-IOSCO-PFMI-L3-GENERAL-BUSINESS-RISK-2025-Q002},
  url       = {https://reglegbrief.com/regulators/j1/INT/BIS-CPMI/CPMI-IOSCO-PFMI-L3-GENERAL-BUSINESS-RISK-2025/practitioners/public-auditors/finding/INT-BIS-CPMI-INT-001-CPMI-IOSCO-PFMI-L3-GENERAL-BUSINESS-RISK-2025-v1-002/}
}
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