All money of the Authority, except as otherwise authorized in this article, shall be deposited as soon as practicable in a separate account in banks or trust companies organized under the laws of the Commonwealth or in national banking associations doing business in the Commonwealth. The money in such accounts shall be paid by checks signed by the Executive Director or other officer or employees of the Authority as the Authority shall authorize. All deposits of money shall, if required by the Authority, be secured in such manner as the Authority determines to be prudent, and all banks or trust companies are authorized to give security for the deposits.