---
date: 2026-07-22
topic: MVAP P2-03 and P4-05 Remediation Validation (Pass 1)
session_type: deliberation
sequence: 1-of-3
prior_session: sessions/2026-06-22-mvap-pillar-2-4-red-blue-exercise.md
voting_participants: 27
moderator: Arthur Vance
court_reporter: Eleanor Vance
rounds: 2
---

# Boardroom Session 1: P2-03 & P4-05 Remediation Validation

**Arthur Vance:** Convening remediation validation per `mvap/REMEDIATION-SPRINT-30DAY.md`. Baseline failures: **P2-03** (7/10 poisoned RAG pass) and **P4-05** (11h alert correlation gap). Owners present evidence; Synapse and Viper re-attack; Shield and Aegis re-defend.

**Exit criteria:** P2-03 ≥9/10 poisoned docs blocked; P4-05 MTTC <30m in staging drill.

---

## Round 1 — Remediation Evidence Review

### Maya Patel — SSCP AppSec (P2-03 Owner)

<details>
<summary>🧠 Thought Process (Dashboard)</summary>

We deployed SHA-256 content hashing on RAG ingest, semantic similarity gate on retrieval, and Synapse's 10-doc poisoned corpus for regression. Need honest score — one bypass still possible via steganographic PDF metadata.
</details>

**Positive Point:** Post-remediation retest blocks **9/10** poisoned documents — meets sprint exit criteria.

**Negative Point:** 1/10 bypass via EXIF metadata channel in PDF — not covered by text extraction filter.

**Position:** P2-03 **CONDITIONAL PASS** for L1 staging; metadata channel requires P2-03.1 addendum.

**Recommendation:** Add binary metadata scrubber to ingest pipeline; retest before production sign-off.

### Synapse — Zero-Day AI/ML (Red Team Validator)

**Positive Point:** Adaptive poisoned doc with homoglyph URL in footnote blocked by semantic gate — improvement verified.

**Negative Point:** Metadata injection path proves static hashing insufficient alone — defense in depth still incomplete.

**Position:** 9/10 is sprint-compliant but not adversarially complete.

**Recommendation:** Integrate Garak indirect injection suite into CI for P2-06 annual scope.

### Shield — Blue Rapid Containment (P4-05 Owner)

<details>
<summary>🧠 Thought Process (Dashboard)</summary>

IR-AI-02 chains P4-02 token spike → P4-03 LotL detection → auto-isolate in one Swimlane playbook. Staging drill measured wall-clock MTTC.
</details>

**Positive Point:** **IR-AI-02** unified playbook executed in **22 minutes** MTTC in staging drill — beats 30m sprint target.

**Negative Point:** Drill used known scenario; analyst override still required for false-positive fear on token alerts.

**Position:** P4-05 **PASS** for sprint exit in staging.

**Recommendation:** Production canary deployment with 10% traffic shadow mode before full auto-isolate.

### Sarah Jenkins — CISSP SOC Director

**Positive Point:** Playbook chains alerts that previously sat in separate queues — root cause of 11h gap addressed.

**Negative Point:** 22m MTTC still exceeds L2 aspirational 15m target scheduled for 90-day review.

**Position:** Sprint pass; L2 gap documented.

**Recommendation:** Add ML-based token baseline auto-tuning to reduce false positives driving analyst delay.

### Marcus Thorne — CCO

**Positive Point:** Remediation evidence is documentable for examination — test logs with timestamps and owners.

**Negative Point:** Conditional P2-03 pass creates policy exception requiring board sign-off for production.

**Position:** Approve staging L1 evidence; withhold production until metadata scrubber deployed.

**Recommendation:** File compensating control memo for 1/10 metadata gap with 30-day closure date.

---
## Round 2 — Adversarial Retest (Red vs Blue)

### Viper — Red Rapid (P2-03 + P4-05 Attack)

**T+0:** Replay indirect injection against remediated RAG — **blocked T+2m** (9 prior vectors).

**T+18m:** Novel metadata vector (Synapse supplied) — **bypass succeeds** — exfil attempt via `export_tool` with **new per-user ACL** — **blocked T+19m** (P2-04 fix holds).

**T+24m:** Token spike fires → IR-AI-02 triggers → subnet isolated **T+26m** — **MTTC 26m**.

**Positive Point:** P2-04 and P4-05 improvements measurably slow attack.

**Negative Point:** P2-03 metadata gap exploitable in under 20 minutes.

**Tactical Timeline:** T+0–T+30m adversarial retest complete.

### Aegis — Blue Rapid (Detection)

**Positive Point:** P4-02 fired T+1m; correlation to IR-AI-02 without manual queue hop.

**Negative Point:** Metadata bypass occurred before any RAG retrieval alert existed — detection gap for ingest-path attacks.

**Tactical Timeline:** Ingest-path detection rule proposed — P4-03.1 extension.

### Dr. Elena Rostova — CCO Adaptive

**Positive Point:** Metadata scrubber deployable as CI gate on RAG ingest within 1 sprint.

**Negative Point:** Pipeline change requires change-advisory for production — 2-week minimum.

**Position:** Supports conditional L1 for P2-03 with automated gate roadmap.

---

### Verification Ledger (Pass 1) — Eleanor Vance

| Claim | Speaker | Status | Source / Note |
|-------|---------|--------|---------------|
| P2-03 retest 9/10 poisoned docs blocked | Maya Patel | ⚠️ Partial | Staging test log 2026-07-21; 1 metadata bypass documented |
| P4-05 IR-AI-02 MTTC 22m staging | Shield | ⚠️ Partial | Drill record; production not tested |
| Per-user export_tool ACL blocks exfil | Oliver Hansen | ⚠️ Partial | P2-04 remediation verified in retest |
| OWASP LLM01 covers indirect injection | Synapse | ✅ Verified | https://genai.owasp.org/llmrisk/llm01-prompt-injection/ |

### Moderator Synthesis (Pass 1) — Arthur Vance

**Consensus Check:**
- P2-03: ✅ **16/27** — CONDITIONAL PASS (≥9/10 met; metadata gap acknowledged)
- P4-05: ✅ **19/27** — PASS staging MTTC <30m

**Vote:** Remediation sprint **partially complete**. Proceed to 90-day L2 review; defer production P2-03 sign-off.

---
## Boardroom Verdict (Pass 1)

**Consensus:** P4-05 remediated for staging. P2-03 meets numeric threshold with documented exception.

**Dissent:** Aether/Hex — metadata gap proves application-layer MVAP insufficient without firmware advisory (4/27).

**Open Questions:** Production validation of IR-AI-02; metadata scrubber timeline.

**Next Steps:** Convene 90-day L2 maturity review 2026-09-20; schedule Pass 2 production validation after L2 vote.
