The expansion of wireless networks seems to be unstoppable, for both the desire to eliminate cables and the increase in portability of devices with WiFi capabilities, primarily notebooks. Wireless internet is now generally available in offices, parks, cafés etc., and more and more home users are opting for setting up a personal wireless network themselves as well, in order to simplify internet access to various devices in their environment. However, in parallel with the increase in the number of available wireless networks, there’s also been another trend in development - the problem of internet “thievery”, i.e. neighbours that access your unprotected (or poorly protected) wireless network. In the best case scenario, you’ll experience throughput problems and poor internet performance, but it doesn’t always end there - you may even expose your shared folders and all the files contained within. Luckily, protection against the aforementioned unwanted intrusions isn’t a complicated feat to achieve, and we’ll develop on the most effective ways to do that…