UN experts raise concerns over Meta’s impact on political expression ahead of Brazil’s elections
UN human rights experts have warned that Meta’s content moderation and automated systems could restrict political expression and undermine equal participation in Brazil’s 2026 presidential elections. They have urged the company to ensure transparency, equal treatment of candidates and effective remedies.
United Nations human rights experts have raised concerns about Meta’s handling of political content ahead of Brazil’s 2026 presidential runoff, warning that restrictions on legitimate political expression could affect electoral integrity and public trust.
The concerns follow allegations by incumbent President Luiz Inácio Lula da Silva and his supporters that Meta’s platforms favoured his opponent, Flávio Bolsonaro. The controversy intensified after Lula was temporarily unable to promote posts on Instagram for nearly 24 hours, while Bolsonaro’s digital campaign reportedly continued operating normally.
Lula’s campaign challenged the restrictions before Brazil’s Superior Electoral Court (TSE), alleging algorithmic bias and foreign political pressure. The court subsequently ordered Meta to ensure equal operational treatment of the candidates, under threat of fines.
Meta rejected the allegations, attributing the disparities to automated anti-fraud measures, prompt safeguards and a wider global data outage. In a submission to the TSE on 20 October, the company maintained that its platforms treated both candidates equally and without discrimination.
The dispute also drew scrutiny from Meta’s Oversight Board, which highlighted recurring weaknesses in the company’s election integrity safeguards. The board pointed to the mistaken blocking of Lula’s advertising account after an automated system misidentified a campaign advertisement as a fake government programme. It also recalled concerns raised following Brazil’s 2022 elections, when it called on Meta to establish clear public metrics for assessing its election safeguards.
In a joint communication, UN human rights experts warned that restrictions affecting post visibility, advertising accounts, search suggestions and AI-generated images could limit political participation. They also raised concerns about freedom of expression and association, peaceful assembly and equal treatment of political viewpoints.
The experts referred to the UN Guiding Principles on Business and Human Rights, stressing that platforms should not become opaque arbiters of political debate. They called on Meta to assess its automated systems, ensure equal treatment and provide transparent remedies before restrictions cause irreversible electoral harm.
The controversy has also prompted public protests and further complaints. On 20 October, demonstrators gathered outside Meta’s offices in São Paulo, while Lula filed a complaint with the Organization of American States over the company’s alleged interference in the electoral process.
Why does it matter?
Social media platforms play an important role in political communication, particularly during election campaigns. Decisions affecting the visibility of posts, access to advertising tools and the treatment of political content can influence how candidates and voters engage online.
The concerns raised by UN experts highlight the importance of transparency and accountability in automated moderation and anti-fraud systems. Even when restrictions result from technical errors rather than deliberate political decisions, limited information about how platforms make and review those decisions can make it difficult to establish whether candidates and political viewpoints are being treated equally.
The case also raises broader questions about the responsibilities of private platforms during elections and their obligations to respect human rights. The UN experts’ intervention places particular emphasis on the need for effective remedies and safeguards against restrictions that could affect political participation.
