While the Internet of Things (IoT) is making our homes smarter and more efficient, potentially it’s also opening the door for hackers intent on raiding the fridge for our personal data. Defence will soon be with us in the shape of Cujo, a smart security device designed to protect IoT devices around the home. Cujo connects to your wireless router and acts as a secure gateway between IoT devices and the wider internet. It’s a clever gadget and it gets smarter all the time, learning how to spot suspicious network activity and adapting to block attacks from different sources. Think of it as a cute, clever little guard dog – and not the rabid St Bernard from the Stephen King movie of the same name.