Simbo AI — agentic threat model
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
| 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.
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.
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.
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.
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.
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.
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.
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).