# O3.20 Ensure unobservability of daily user interactions by design

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{% tab title="Principle" %}
[O3: Ensure data privacy by design](https://safedpi.gitbook.io/safeguards/universal-dpi-safeguards-framework/principles/operational-principles/o3-ensure-data-privacy-by-design)
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{% tab title="Risk" %}
[RS1 Privacy vulnerability](https://safedpi.gitbook.io/safeguards/universal-dpi-safeguards-framework/risks/risks-to-safety)
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{% tab title="Life Cycle Stage" %}
[L2: Strategy & Design](https://safedpi.gitbook.io/safeguards/universal-dpi-safeguards-framework/life-cycle-stages)
{% endtab %}
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## Practices

> * Use advanced anonymization methods, such as differential privacy or data masking.
> * Employ decentralized data storage solutions to distribute data across multiple nodes, reducing the likelihood that any single entity can observe or track user interactions.
> * Integrate zero-knowledge proof protocols to allow for the verification of transactions or identities without revealing any unnecessary information.

## Resources

<table data-view="cards"><thead><tr><th></th><th></th><th></th></tr></thead><tbody><tr><td><strong>References</strong></td><td><p></p><p>Personal Data Protection Commission Singapore (2018). Guide to Basic Data Anonymisation Techniques</p></td><td></td></tr><tr><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td></tr></tbody></table>