(a) Every person appointed or elected to any position requiring the receipt, payment, management, or use of money belonging to a savings bank or whose duties permit or require access to or custody of any of the savings bank’s money or securities or whose duties permit the regular making of entries in the books or other records of the savings bank shall become bonded in some trust or company authorized to issue bonds in this State or in a fidelity insurance company licensed to do business in this State before assuming any duties. Each bond shall be on a form or forms as the Commissioner shall require and in the amount as the board of directors shall fix and approve. Each bond, payable to the savings bank, shall be an indemnity for any loss the savings bank may sustain in money or other property through any dishonest or criminal act or omission by any person required to be bonded, committed either alone or in concert with others. The bond shall be in the form and amount prescribed by the Commissioner, who may at any time require one or more additional bonds. Each bond shall provide that a cancellation thereof either by the surety or by the insured shall not become effective unless and until 30 days notice in writing first shall have been given to the Commissioner, unless he shall have approved the cancellation earlier.
     (b) Nothing contained in this Section shall preclude the Commissioner from proceeding against a savings bank as provided in this Act should he believe that it is being conducted in an unsafe manner in that the form or amount of bonds so fixed and approved by the board of directors is inadequate to give reasonable protection to the savings bank.