Augusto Cury, the presidential candidate for the center-aligned Avante party, has introduced a fresh layer of regulatory uncertainty to Brazil's financial sector by promising to implement "some adaptations" to the nation's ubiquitous PIX instant payment system if elected, without providing any detail on what the changes would entail. The candidate’s vague proposal to alter the core financial infrastructure of the country comes at a time when PIX is already facing sharp international scrutiny, reportedly the subject of an ongoing investigation by the U.S. government regarding its impact on private payment companies.