BRASILIA( Reuters)-Brazil is preparing to receive a record number of international observers for its October election, according to electoral authorities and participating organizations, amid a polarized presidential race in which President Jair Bolsonaro has questioned the reliability of electronic voting machines. Bolsonaro's government objected to an invitation last month extended by Brazilian electoral authorities to the European Union to send observers for the first time, sinking that propo

More than 20 would-be hackers gathered in the Brazilian electoral authority’s headquarters in the capital this week.... Their 3-day battery of attempted assaults ended Friday and was part of planned testing that happens every election year, usually proceeding without incident or, for that matter, drawing any attention.... But with President Jair Bolsonaro continuously sowing doubt about the system’s reliability, the test took on an outsized significance as the electoral authority, known as the