Data & consent · Common term

Zero-party data

What is zero-party data?

Information someone intentionally shares with a brand, such as preferences, goals, or purchase plans. These are stated signals; they still need context and may change over time.

Zero-party data: an illustrative example

A quiz asks someone about their goals and preferences. They knowingly provide answers in exchange for a personalized recommendation, with a clear explanation of how the answers will be used.

Sources and related reading

This is a practical common term. Examples illustrate the concept; they are not verified client results. Working definitions and accountability lenses are not claims of a universal standard or original coinage.

  • Access control

    Rules and technical measures restricting who can use information or systems.

  • AI disclosure

    Clear information about material AI involvement in a service or communication.

  • Anonymization

    Transforming data so people are not reasonably identifiable in its context of use.

  • Audit trail

    A record of actions that supports review of what happened.

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See Zero-party data in the full glossary

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