Artifact GuideBrazilLegal Bases and Legitimate Interest Balancing

Brazil LGPD Legal Bases and Legitimate Interest Balancing

can support necessary processing of non-sensitive personal data only when the controller's or a third party's lawful, concrete interest does not give way to the person's rights and freedoms.

The ANPD recommends a three-phase balancing test: purpose, necessity, and balancing with safeguards. Its model is not mandatory, but the LGPD conditions are.

Author
Sorena AI
Published
May 9, 2026
Updated
Oct 15, 2026
Overview

Use Article 7(IX) only for non-sensitive personal data and a specific purpose. Identify a grounded in a concrete situation, show that the processing is necessary and no less intrusive reasonable route achieves the purpose, then weigh impacts, rights, vulnerabilities, and the person's . Add safeguards and stop if rights and freedoms prevail.

Section 3

Which facts most often defeat legitimate interest?

Article 7 is unavailable for sensitive data. Article 11's fraud-prevention and data-subject-security basis is separate and limited to electronic identification and authentication; the ANPD guide applies a similar balancing method to that basis.

Publicly accessible data remains protected. Purpose, good faith, public interest, rights, source, context, and still matter. A privacy notice does not make disproportionate employee surveillance, unexpected profiling, or broad reuse acceptable.

ANPD examples show why context controls the result. A school may be able to use ordinary student identifiers to authenticate access to its Wi-Fi after a best-interest assessment and suitable safeguards. Child-directed advertising for unhealthy food in an educational app failed the guide's analysis because the purpose was unexpected and did not satisfy the child's best interest. Shopping-centre camera monitoring may support safety, but scale, public-area monitoring, children, retention, access limits, notices, and avoidance of biometric analysis can require a fuller high-risk assessment and .

  • For children and adolescents, Article 7(IX) can be considered only with the additional Article 14 best-interest requirement applied to the concrete case.
  • Public bodies should generally avoid for compulsory processing or legal duties; the ANPD guide treats its public-sector use as limited and case-specific.
  • Employment power imbalance, vulnerable groups, covert collection, large-scale monitoring, location tracking, biometrics, behavioural profiling, or consequential automated uses require closer scrutiny and may defeat the balance.
  • A person may object when non-consent processing violates the LGPD. Design a practical objection and review path rather than assuming the assessment ends the issue.
Section 4

How should teams document and review the result?

The ANPD model is optional, so an organisation may adapt the format. The record must still be detailed enough to demonstrate the actual purpose, interest, necessity, balance, expectations, and safeguards. A short assessment may be proportionate for clearly low-impact processing; high-scale or novel technology may need more detail and a broader .

Link the result to the Article 37 processing record, live notice, data minimisation, retention, security controls, objection route, vendor instructions, and any . Approval should be conditional on those safeguards operating.

  • Run a new or revised test when the purpose, data, people, source, scale, sharing, automation, retention, expectations, or safeguards change.
  • Test implemented minimisation and objection controls rather than approving planned safeguards on paper.
  • Record the conclusion as approve, approve with named conditions, redesign, choose another basis, or stop.
  • Do not copy a test between products without checking the facts.
Primary sources

References and citations

gov.br2 citations
Referenced sections
  • Non-binding ANPD interpretation, examples, three-phase balancing method, optional model, public-sector limits, sensitive-data boundary, and documentation guidance.
  • ANPD guidance on interpreting legitimate interest and documenting the balancing test.
"i) finalidade; ii) necessidade; e iii) balanceamento e salvaguardas"
planalto.gov.br
Referenced sections
  • Planalto LGPD text for Article 7 lawful bases and Article 10 legitimate-interest safeguards.
"legítimo interesse do controlador ou de terceiro"
planalto.gov.br
Referenced sections
  • Binding Articles 6, 7(IX), 10, 14, 18, and 37 for principles, legitimate interest, safeguards, children, objection, and processing records.
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