Brazil LGPD + ANPD AI Guidance in 2026 — Voice Agents, Generative AI, and PL 2338

Brazil's LGPD has been in force since 2020 and ANPD has matured into a peer of CNIL and ICO. The 2024 Generative AI study, the AI sandbox in 2026, and the pending PL 2338 give voice and chat a clear playbook.

What the law says

Lei Geral de Proteção de Dados (LGPD, Lei 13.709/2018) governs personal-data processing in Brazil. Ten lawful bases echo the GDPR plus a "legitimate interests" basis with required balancing. Sensitive personal data — racial origin, religion, political opinion, union membership, health, sex life, genetic, biometric — needs specific consent or a narrow exception. ANPD's enforcement powers include warnings, daily fines, suspension, and fines up to 2% of group turnover in Brazil capped at R$50M per infraction. Article 20 grants a right to review of decisions made solely on automated processing that affects interests, including profiling — analogous to GDPR Article 22 but explicitly retained even after the Constitutional Court limited the original full-explainability text.

ANPD's November 2024 study Inteligência Artificial Generativa (Technological Radar) sets expectations: legal basis must be documented per processing operation; legitimate interests requires a three-step test; data subject rights apply to outputs; cross-border transfers need a basis under Articles 33–36. Brazil's Plano Brasileiro de Inteligência Artificial 2024–2028 funds Portuguese-language foundation models and a regulatory sandbox. PL 2338/2023, the AI Bill, is moving through the Senate and would establish a risk-based AI regime.

What AI voice/chat must do

Voice agents serving Brazilian residents need a documented LGPD lawful basis per processing operation, a privacy notice in Portuguese with the controller's identity and DPO contact, and an Article 20 review pathway for any solely automated decision that affects the data subject. Sensitive-data processing — biometric voiceprints, health intent — needs specific consent. Cross-border transfers go via Standard Contractual Clauses (Brazilian model adopted in 2023), specific consent, or adequate jurisdiction. ANPD-reportable breaches must move quickly. Generative-AI deployments document training-data provenance per the 2024 ANPD study.

CallSphere posture

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flowchart LR
A[BR Caller] --> B[Voice Agent\nPT-BR]
B --> C[LGPD Basis Map]
B --> D[Art 20 Review]
D --> E[Human Reviewer]
B --> F[ANPD Breach\nRunbook]
F --> G[Cross-Border\nSCC]

Compliance checklist

1. Map every processing operation to one of the ten LGPD lawful bases with written justification.
2. Publish a Portuguese privacy notice naming the controller, DPO (encarregado), and rights.
3. Build an Article 20 review pathway for solely-automated decisions that affect the data subject.
4. Capture specific consent for sensitive data, including biometric voiceprints.
5. Apply ANPD's GenAI study checklist before launching any LLM-backed feature.
6. Document cross-border transfers with the relevant Article 33 basis.
7. Stand up an ANPD breach-response runbook and reasonable timing.
8. Conduct a Relatório de Impacto à Proteção de Dados (RIPD/DPIA) for high-risk processing.
9. Localise data subject request workflows in Portuguese.
10. Track PL 2338 progress; align voluntarily with high-risk obligations.

FAQ

Is consent the default basis? No — LGPD has ten bases. Consent is one. Contractual necessity, legitimate interests, and legal obligation are common alternatives.

Are voice biometrics sensitive? Yes — biometric data for unique identification is sensitive and requires specific consent or another Article 11 exception.

Does ANPD recognise GDPR DPIAs? A GDPR DPIA is a strong starting point but should be re-papered as an LGPD RIPD.

Can we skip Portuguese in B2B? The notice should be in the language the data subject understands; Portuguese is the safe default.

Is there a cure period? ANPD often issues warnings before fines but is not obligated to. Treat warnings as fast-onset.

Sources

• ANPD — Autoridade Nacional de Proteção de Dados: https://www.gov.br/anpd/pt-br
• LGPD — Lei 13.709/2018 (Planalto): https://www.planalto.gov.br/ccivil_03/_ato2015-2018/2018/lei/l13709.htm
• ANPD GenAI Study Nov 2024 (FPF coverage): https://fpf.org/blog/brazils-anpd-preliminary-study-on-generative-ai-highlights-the-dual-nature-of-data-protection-law-balancing-rights-with-technological-innovation/
• IAPP ANPD GenAI Expectations: https://iapp.org/news/a/what-brazil-s-anpd-expects-from-companies-using-generative-ai
• ANPD AI Sandbox — US Trade.gov: https://www.trade.gov/market-intelligence/brazil-it-anpd-ai-sandbox-participation