AI Cyber Defense / Protecting AI systems used by defenders and the business
AI Cyber Defense: Prevent external content from changing tool definitions
Load tool contracts from controlled application configuration and validate arguments at execution. Treat instructions in tool output as untrusted content rather than configuration updates.
Environment and inputs: Enterprise AI assistants, security copilots, retrieval systems and application-controlled tool executors; framework-independent design.
Scenario and goal
A retrieved webpage or plugin response can claim that the assistant should use a different endpoint or credential.
Why it matters
This path concerns attacks against AI-enabled systems used by the defender or business. It complements defenses against attackers who use AI as a tool. Treat model inputs, retrieved evidence and generated plans as untrusted proposals at execution boundaries. A model may assist analysis, but the application remains responsible for tenant isolation, authorization, resource budgets and the integrity of approvals and receipts.
Evidence to collect
Compare registered tool definitions, configured destinations and proposed calls with the source that suggested a change.
Validate with an authorized exercise
Feed a harmless tool response proposing a new endpoint to a mocked workflow; confirm the registered destination remains unchanged and the attempted deviation is recorded.
Rollout and checks
Use synthetic evidence and mocked write tools for adversarial evaluation. Version the model, prompts, tool contracts and retrieval configuration together. Keep high-impact permissions outside the model and retain an operator takeover path. When an evaluation fails, correct the enforceable boundary and rerun the same fixture rather than relying only on a stronger wording of the prompt.
Scope and limits
This guide proposes a defensive test; it is not a tested production design. Check platform support and local requirements. References explain the mechanisms but do not certify the design. Behavior alone does not prove AI involvement.