writes "Security researcher Gene Bransfield, with the help of his wife's grandmother's cat, decided to see how many neighborhood WiFi access points he could map and potentially compromise. With a collar loaded with a Spark chip, a Wi-Fi module, a GPS module, and a battery, Coco the cat helped Gene identify Wi-Fi networks around the neighborhood and then reported back. The goal here is obvious: Discover all of the unsecured, or at least poorly-secured, wireless access points around the neighborhood. During his journey, Coco identified dozens of Wi-Fi networks, with four of them using easily-broken WEP security, and another four that had no security at all. Gene has dubbed his collar the "WarKitteh", and it cost him less than $100 to make. He admits that such a collar isn't a security threat, but more of a goofy hack. Of course, it could be used for shadier purposes."
(Here's Wired's article
on the connected cat-collar.)