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Simbo AI — agentic threat model

7.9AIVSS 7.9 · High

Simbo AI presents a high-risk profile due to its direct integration with healthcare workflows (handling PHI and scheduling) and its autonomous voice interface, which is susceptible to voice-based prompt injection and unauthorized EHR modifications.

OWASP AIVSS score rationale

AIVSS = (CVSS_Base + AARS) × Mitigation_Factor, where AARS = (10 − CVSS_Base) × (Factor_Sum / 10) × ThM
CVSS base 8.5AARS uplift 0.79Factor sum 5.0/10Threat ×1.05Mitigation ×0.85
Autonomy of Action
0.80
Goal-Driven Planning
0.60
Self-Modification
0.10
Dynamic Tool Use
0.70
Persistent Memory
0.50
Contextual Awareness
0.70
Dynamic Identity
0.20
Multi-Agent Interactions
0.10
Non-Determinism
0.60
Opacity & Reflexivity
0.70

Scored with the canonical OWASP AIVSS formula (AIVSS calculator reference); agentic risk factors estimated from the agent’s described capabilities.

MAESTRO 7-layer threat model

Per-layer threats for this agent. Layers tagged “not certain from listing” are general, caveated commentary where the public description didn’t pin that layer.

L1 · Foundation Models⚠ not certain from listing

Not certain from the listing — likely utilizes proprietary or fine-tuned LLMs optimized for low-latency voice synthesis and speech-to-text. Primary threats include voice prompt injection (VPI), adversarial audio inputs, and potential generation of inaccurate or harmful medical advice.

L2 · Data Operations⚠ not certain from listing

Not certain from the listing — must interface with Electronic Health Records (EHR) and scheduling databases to execute 50+ patient call functions. Key threats include unauthorized PHI exfiltration, database poisoning via malicious patient inputs, and lack of data lineage for voice-derived records.

L3 · Agent Frameworks⚠ not certain from listing

Not certain from the listing — orchestrates complex multi-step call flows (appointments, follow-ups). Threats include insecure tool calling (e.g., booking appointments without proper authentication) and state-machine manipulation by malicious callers.

L4 · Deployment & Infrastructure⚠ not certain from listing

Not certain from the listing — requires integration with telephony infrastructure (SIP/VoIP) and low-latency hosting. Threats include SIP flooding, toll fraud, eavesdropping on voice streams, and container escape from the voice processing environment.

L5 · Evaluation & Observability⚠ not certain from listing

Not certain from the listing — mentions eight patents ensuring 'responsible AI and safety', suggesting proprietary guardrails. However, threats remain regarding blind spots in real-time voice monitoring and the difficulty of auditing non-deterministic spoken interactions.

L6 · Security & Compliance (cross-cutting)⚠ not certain from listing

Not certain from the listing — operating in healthcare necessitates strict HIPAA compliance and robust audit trails, but specific certifications are not explicitly listed. Threats include regulatory non-compliance and lack of explicit patient consent logging during automated calls.

L7 · Agent Ecosystem⚠ not certain from listing

Not certain from the listing — primarily operates as a standalone copilot interacting with human patients and internal systems, rather than a multi-agent marketplace. Threats are limited to downstream API vulnerabilities in connected healthcare ecosystems.

MAESTRO — the 7-layer agentic threat-modeling framework (Cloud Security Alliance / Ken Huang).