UPDATE 1-Itaú may guard against more defaults as Petrobras scandal widens
January 09, 2015 at 08:01 AM EST
SAO PAULO, Jan 9 (Reuters) - Itau Unibanco , Brazil's largest private lender, may increase provisions for company loan defaults in 2015 due to a corruption scandal at state-run oil firm Petrobras that has implicated several major construction firms, the bank's senior vice president for risk and compliance said.