X owns 10,000 shares in Z Telecoms Corp. As he is in immediate need of money, he offered to sell all his shares to his friend, Y, at a bargain price. Upon receipt of the purchase price from Y, X proceeded to indorse in blank the certificates of shares and delivered these to Y. The latter then went to the corporate secretary of Z Telecoms Corp. and requested the transfer of the shares in his name. The corporate secretary refused since X merely indorsed the certificates in blank to Y. According to the corporate secretary, the certificates should have been specifically indorsed to the purchaser, Y. Was the corporate secretary justified in declining Y's request? Discuss. (5%)