All money of the corporation, except as otherwise authorized or provided in sections 2-4201 to 2-4246, shall be deposited as soon as practical in a separate account or accounts in banks or trust companies organized under the laws of this state or in the national banking associations. The money in such accounts shall be paid out on checks signed by the administrator or other officers or employees of the corporation as the corporation shall authorize. All deposits of money shall, if required by the corporation, be secured in such a manner as the corporation determines to be prudent, and all banks or trust companies are authorized to give security for the deposits.