SECURITY SYSTEM AND SECURITY METHOD FOR INTERNET OF THINGS CONNECTED WIRELESS NETWORK

The present invention is not to realize a virtual private network for individually maintaining data security for each equipment connected by using Internet of things, but to realize a virtual private network for the data security in a wired/wireless communications device which is connected to the Internet of things to be connected to an external network in order to transmit data. A terminal, which is connected to the Internet of things to be used, has the virtual private network in a wireless VPN device (Lte, 3G, WiMAX, Zigbee, Wi-Fi, and RF) connected to the terminal in order to transmit data, and the connected wired/wireless device can be in several types. For example, when data of the terminal, which is equipped in the house, is transmitted to the outside through the Internet by using the Zigbee, the data or control signals, which are currently measured, are transceived with the outside by using a Zigbee wireless device. In this case, the virtual private network and a firewall for the data security are realized in the Zigbee wireless VPN device, thereby ensuring the security for the data which is transmitted to the outside.