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Brazilian Supreme Court redefines the responsibility of digital platforms.

September 26, 2025

What changes with the new interpretation of the Brazilian Internet Bill of Rights? 

THE The Supreme Federal Court (STF) recognized The partial unconstitutionality of article 19 of the Brazilian Internet Bill of Rights, significantly reshaping the civil liability regime of digital platforms for content published by third parties. 

Until then, Article 19 stipulated that platforms could only be held civilly liable if, after a specific court order, they failed to remove illegal content. In other words, a complaint or extrajudicial notification was not enough—a prior court decision was required.

According to the new ruling established by the Brazilian Supreme Court (STF), the previous model did not provide sufficient protection for fundamental rights such as human dignity, the rights of minorities, children, and women, nor for the democratic rule of law itself. Therefore, the justices determined that in certain situations, platforms can be held liable even without a prior court order. 

When can the platform respond without a court order?

The Court established three situations in which this direct liability applies: (i) boosted or sponsored content, as the platform is presumed to be aware of it; (ii) dissemination through artificial networks (bots or fake accounts); and (iii) massive circulation of extremely serious content, such as incitement to terrorism, sexual crimes against vulnerable individuals, anti-democratic acts, and hate speech. In these cases, immediate and diligent action by the platform is required, under penalty of liability for "systemic failure". 

For crimes against honor (such as slander and defamation), the Supreme Federal Court (STF) maintained the requirement for a court order. However, if the content is repeated after a court decision, notification will suffice to demand the removal of identical publications. 

New compliance and governance obligations

The decision also imposes additional obligations on the platforms, such as creating accessible reporting channels, publishingto publish transparency reports and maintain legal representation in Brazil. Although its effects are prospective, the change represents a milestone for Brazilian digital law, seeking to balance freedom of expression, protection of fundamental rights, and the fight against disinformation and hate speech in the virtual environment. 

The Supreme Court's new interpretation demands heightened attention from companies, legal professionals, and users regarding risk management and compliance with the new guidelines. More than ever, it is essential that platforms adopt a proactive approach, with well-structured internal moderation and response mechanisms, in order to guarantee legal certainty and compliance with the new liability regime established by the Court.

If you have any questions about the topics covered in this publication, please contact any of the lawyers listed below or your usual Mazzucco&Mello contact.

Leonardo Neri Candido de Azevedo

+55 11 3090-9195

Rafael Mello

+55 11 3090-9195

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