# Privacy by architecture: remove unnecessary data

https://thiago.limaesilvatecnologia.com.br/en/artigos/privacy-minimization/

Published: 2026-09-12

Minimization starts before storage protection choices.

Content produced with AI assistance for Thiago Silva’s website. Independent editorial analysis; it does not represent clients or employers.

Reading-path month: September 2026

Collection published on September 12, 2026. Months organize the reading path; they are not earlier publication dates.

A short architecture article. The technical reference supports the topic; hypothetical scenarios and assessment proposals are editorial analysis, not accounts of personal implementations.

## The architecture decision

A convenience field creates access, retention and deletion dependencies. Question its necessity before discussing storage.

## Practical application

Editorial proposal: map every field in hypothetical registration to a concrete product purpose. Distinguish current needs from future ideas. Refer specific legal questions to the appropriate owner.

## How to verify

Remove a field from a prototype and observe actual functional impact. Separate habit from requirement. Record decisions and trace derived copies: removing a field from a screen does not erase integrations, reports or backups.

## Sources

- [OWASP — User Privacy Protection Cheat Sheet](https://cheatsheetseries.owasp.org/cheatsheets/User_Privacy_Protection_Cheat_Sheet.html). Accessed: 2026-09-12.

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