With Next-Generation Firewalls, we do more than keep the front door shut. A Next-Generation Firewall regulates and analyses the applications on the network and their properties and links user behaviour to risks. In short, this is an effective tool with which to determine exactly what is and is not allowed and which information may be shared via the network, filtered by file type, user authorisation, file size and even keywords. Abnormalities are recognised and detected, so effective measures can be taken immediately. Abuse or misuse of the network can be limited, which in turn increases the bandwidth available to the processes it was intended for.