64. Upon his appointment, the curator shall immediately give security in cash or by bond of a guarantee company satisfactory to the Board for the due accounting of all property he receives as curator and for the due and faithful performance of his duties; the security shall be deposited with the Board and given in favour of the plan. It may be enforced by any succeeding curator or by the administrator of the plan after termination of the trusteeship. The amount of the security shall be determined by the Board which may increase or reduce it.