Social media failing to keep up with Brazil electoral disinformation, rights groups say

FILE PHOTO: Brazil's former President Luiz Inacio Lula da Silva and Brazil's President Jair Bolsonaro participate in a candidates' debate ahead of a runoff election, in Sao Paulo, Brazil, October 16, 2022. REUTERS/Mariana Greif

SAO PAULO (Reuters) - Human rights groups and researchers have raised concerns in Brazil that social media platforms are failing to effectively police disinformation ahead of a highly polarized presidential vote on Sunday.

Brazil's Superior Electoral Court (TSE) bolstered measures this month to tackle disinformation around the election, especially on video sharing platforms. Sunday's runoff vote pits far-right President Jair Bolsonaro against leftist former President Luiz Inacio Lula da Silva.