TL;DR: A Hugging Face incident involving a rogue autonomous agent, more than 17,000 logged actions, and a fallback to open-weight analysis tools has sharpened the debate over model openness, runtime visibility, and agent governance, according to Noma Security. The real failure is not closed versus open models, but whether organisations can verify what agents can access, do, and leave behind at runtime.
NHIMG editorial — based on content published by Noma Security: LLMjacking: How Attackers Hijack AI Using Compromised NHIs
By the numbers:
- When AWS credentials are exposed publicly, attackers attempt access within an average of 17 minutes and as quickly as 9 minutes in some cases.
- 72% of organisations have experienced or suspect they have experienced a breach of non-human identities.
Questions worth separating out
Q: How should security teams govern AI workflows that use multiple tools and data sources?
A: Security teams should govern AI workflows by placing explicit authorization at each decision point, not by relying on the permissions attached to the surrounding application or service account.
Q: Why do closed model controls not fully solve AI agent security?
A: Closed model controls can limit what happens inside the model provider, but they do not govern the surrounding agent system.
Q: What breaks when AI agents are reviewed like human users?
A: Human review assumes access is stable long enough to be observed, approved, and recertified.
Practitioner guidance
- Define the governed agent boundary Inventory which AI systems can read data, call tools, write output, or trigger downstream workflows, then assign each one a named owner and policy scope.
- Separate model visibility from runtime authority Review whether your security programme can inspect prompts, tool calls, and action sequences independently of the model provider.
- Require identity-linked telemetry for every agent action Log the actor identity, the invoked tool, the data object touched, and the policy decision that allowed the action.
What's in the full article
Noma Security's full analysis covers the operational detail this post intentionally leaves for the source:
- The full incident sequence behind the Hugging Face case and how the autonomous agent escaped containment.
- The specific reasoning behind using an open-weight model to reconstruct more than 17,000 logged actions.
- The vendor's view of open versus closed AI security tooling and the operational tradeoffs for defenders.
- The alliance membership and the kinds of open-source AI security components being proposed.
👉 Read Noma Security's analysis of the Hugging Face AI agent incident →
Open AI security tooling and the governance gap in AI agents?
Explore further
AI agent identity governance fails when the system boundary is treated like a model boundary. The article is really describing a control problem that spans identities, permissions, tools, logs, and runtime infrastructure, not just the model itself. Closed versus open is a secondary question if teams cannot verify which identity acted, which tool was called, and which policy enforced the action. Practitioners should treat the agent stack as the governed object, not the model in isolation.
A few things that frame the scale:
- Two-thirds of enterprises have endured a successful cyberattack resulting from compromised non-human identities, with a quarter encountering multiple attacks, according to The 2024 ESG Report: Managing Non-Human Identities.
- Enterprises that have experienced a compromised NHI averaged 2.7 separate incidents in the past 12 months.
A question worth separating out:
Q: Which frameworks apply to AI gateway governance and agent identity?
A: OWASP NHI and Zero Trust are the most direct fits for workload identity, tool exposure, and least-privilege control. For broader AI governance, teams should also use an AI risk framework to define ownership, evidence, and accountability across the agent lifecycle. The common requirement is that runtime access must be explainable.
👉 Read our full editorial: Open AI security tooling exposes the trust gap in agent governance