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AI Security

Interview question · Agent, Tool & MCP Security

How should untrusted documents and web content enter an agent workflow?

Choose narrow extraction or full-text reading according to the task. Preserve source evidence and uncertainty, and enforce data audiences and action authority independently of extracted claims.

mediumNewUpdated Nov 2026

Choose narrow extraction or full-text reading according to the task. Preserve source evidence and uncertainty, and enforce data audiences and action authority independently of extracted claims.

Make your first attempt

What would you say before reading the answer?

  1. 01 State the assumptions your answer depends on.
  2. 02 Explain the mechanism and choose a control.
  3. 03 Name a condition that would change your decision.

The worked answer includes an approach, scoring criteria and follow-up questions. Compare the reasoning with your own.

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What if · the follow-ups in this answer

The answer works through 4 follow-ups like an interviewer would

A procurement assistant extracts a delivery date and contact address from a vendor document, then proposes sending an order update under an existing customer-service grant.

  1. Does a valid date field prove the delivery commitment?
  2. Can the document choose the update’s recipient?
  3. Must the customer approve an update already covered by a valid grant?
  4. How would you test the ingestion design?

Each rung has a nudge, a model answer, the principle that carries over and the weak answer to avoid. Premium opens every answer and ladder.

UP NEXT ON YOUR JOURNEY
Next in this trackWhat are the security risks of agents that operate a browser or a desktop, and how do you contain them?Next in this trackHow can one compromised or faulty agent cascade through a system, and what circuit breakers stop it?Next in this trackA support bot can look up orders and send emails. Where do you start testing and hardening it?
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