Security questionnaire guide
How to answer subprocessor questions in a security questionnaire
Give clear subprocessor answers with vendor names, purpose, location, and data handled.
What buyers usually ask
Do you use subprocessors?
List third parties that process customer data.
How do you notify customers of subprocessor changes?
What evidence you usually need
Subprocessor list
DPA
Privacy policy
Vendor review notes
Example safe answer structure
Provide a current subprocessor list with purpose and data categories. If notification procedures exist, reference the DPA or privacy policy.
Common mistakes
- Claiming a certification or control that is not documented.
- Copying an old answer without checking whether it still applies.
- Leaving out evidence, owner, confidence, or review status.
- Marking an answer as ready when it needs legal, security, or engineering review.
Answer subprocessors questions faster
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