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Interview question · Agent, Tool & MCP Security

A support bot can look up orders and send emails. Where do you start testing and hardening it?

Review customer, operator and service authority separately. Enforce order access and email release policy, govern contact changes, and test valid work alongside unauthorized reads and disclosures.

mediumNewUpdated Nov 2026

Review customer, operator and service authority separately. Enforce order access and email release policy, govern contact changes, and test valid work alongside unauthorized reads and disclosures.

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  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.

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What if · the follow-ups in this answer

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

Mina uses customer self-service. Aria is an operator assigned to Mina’s support case. Both can ask the bot about an order and request an email update.

  1. Must Aria be denied because she does not own Mina’s order?
  2. Does knowing an order number and email prove Mina’s identity?
  3. Can a verified alternate recipient receive every attachment?
  4. What evidence supports the hardening review?

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