Unlike wired network data, your wireless data transmissions can be received well beyond your walls by anyone with a compatible adapter. For this reason, use the security features of your wireless settings of mywifiext. The WiFi range extender provides highly effective security features, Indoors, computers can connect over 802.11b/g wireless networks at ranges of up to 300 feet. Such distances can allow for others outside of your immediate area to access your network. There are several ways you can enhance the security of your wireless network in mywifiext set up. Restrict access based on MAC address.