The undertaking shall become effective for the purpose stated in § 21609 of this Article ten days after service of a copy thereof on the plaintiff, unless objection to such undertaking is made as in this Article provided, and in case objection is so made to the undertaking filed and served, the same shall become effective for such purpose when an order is made by such court approving the sureties, when the surety or sureties are objected to, or affirming the estimate of the value of property when objection is made thereto, or in the case any objection to the undertaking is sustained by the court when a new undertaking is filed and served as required by this Article, to which no objection if made, or is made, is not sustained by the court.

SOURCE: CCP § 680.