Nu Holdings Ltd. co-founder Cristina Junqueira apologized to Nubank customers who received an app alert telling them the bank had been liquidated, saying a software programmer inadvertently caused the faulty notification. Nu Holdings Ltd. co-founder Cristina Junqueira apologized to Nubank customers who received an app alert telling them the bank had been liquidated, saying a software programmer inadvertently caused the faulty notification. by Soban News (international And National News)