Wi-Fi gives us freedom from wires, but it's not secure by default. Data is transmitted through the air, and anyone nearby can easily capture it with the right tools. As discussed below, whether you have your own Wi-Fi network or use someone else's, employing security measures is necessary to protect company files, online accounts, and user privacy.
Why Protect Your Wi-Fi Network?By default, Wi-Fi routers and access points aren't secure when you purchase them. Unless you enable encryption, people nearby can easily connect to your network. At best, they just use the free wireless Internet for browsing and downloading, possibly slowing down your connections. However, if they wanted to, they could possibly access your PCs and files. They also could easily capture your passwords or hijack your accounts for websites and services that don't use SSL encryption, such as some Web-based email clients, Facebook, and Twitter.
Read this full article at IT World
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