Most are so-called phishing scams, where fraudsters often pose as your bank and claim they need key information from you to keep your account open.

WSJ: Phishing Bank Scams Are on the Rise

There is a need for Brazil to attract money because of its current account deficit so there will still be dollars flowing into Brazil and that will keep the channels of communcation open between the onshore and offshore markets.

FORBES: Brazil's New Forex Rules Unlikely To Save Dollar