Onboarding Voice Assistant — agentic threat model
The Onboarding Voice Assistant presents a moderate-to-high risk profile primarily due to its integration with HR systems containing sensitive employee PII. While its core function is educational, unauthorized access or manipulation of HR data via voice-driven prompt injection represents a significant threat vector.
OWASP AIVSS score rationale
| Autonomy of Action | 0.40 | |
| Goal-Driven Planning | 0.30 | |
| Self-Modification | 0.00 | |
| Dynamic Tool Use | 0.50 | |
| Persistent Memory | 0.40 | |
| Contextual Awareness | 0.60 | |
| Dynamic Identity | 0.20 | |
| Multi-Agent Interactions | 0.10 | |
| Non-Determinism | 0.50 | |
| Opacity & Reflexivity | 0.40 |
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 — The underlying LLM and text-to-speech/speech-to-text models are unspecified, leaving the system vulnerable to standard voice-based prompt injection, model evasion, or adversarial audio inputs that could bypass safety guardrails.
The agent ingests corporate policies, training materials, FAQs, and HR system data. This creates a high-value target for data exfiltration of proprietary company documents or sensitive employee PII, as well as risks of data poisoning if training materials are maliciously altered.
Not certain from the listing — The orchestration framework is not detailed, but the 'HR System Integration' suggests tool-calling capabilities that could be abused via prompt injection to perform unauthorized queries or modifications within the HR database.
Not certain from the listing — No details are provided regarding hosting, API security, or sandboxing of the voice integration, which could expose the hosting infrastructure or HR API endpoints to unauthorized access.
Not certain from the listing — There is no mention of real-time monitoring, transcript logging guardrails, or drift detection, raising the risk of undetected toxic outputs or silent data exfiltration during voice sessions.
Not certain from the listing — While handling HR data requires strict compliance (e.g., GDPR, SOC2), the listing does not specify any identity management, access control policies, or regulatory compliance certifications.
Not certain from the listing — There is no indication of multi-agent collaboration or marketplace integrations, suggesting the agent operates as a standalone vertical solution.
MAESTRO — the 7-layer agentic threat-modeling framework (Cloud Security Alliance / Ken Huang).