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Wireless access points are everywhere, at home, offices and public places like shopping malls, on the road and open spaces. Network engineer would require a specific tool to do wardriving, that is to search for Wi-Fi wireless networks by a person in a moving vehicle. The tool could be installed inside a portable computer, smartphone or personal digital assistant. Some hobbyist does wardriving to exploit connections to wireless local area network around a city or elsewhere. There may also be a potential data leak if the wardriving tool used are bulky that would attract attention from passerby. This is because to do wardriving one needs a vehicle, a portable computer, a wireless Ethernet card set to work in promiscuous mode, and some kind of an antenna which can be mounted on top of or positioned inside the car. A small and non-bulky wardriving tool is more suitable in order not to attract attention. Traditionally, a …