Neither the commissioner [director of the financial institutions division of the regulation and licensing department], nor his deputies or employees, nor the state corporation commission [public regulation commission], nor any member thereof, nor any deputy, clerk or employee in its office shall divulge any information acquired by them in the discharge of their duties, except insofar as the same may be rendered necessary by law. The commissioner [director] may exchange information as to the conditions of banks with the United States comptroller of the currency, federal deposit insurance corporation, federal reserve banks, and banking departments of other states. Anyone who violates the provisions of this section shall be deemed guilty of a misdemeanor.