The perimeter defense group is a small one and there's a very good reason for that. Nowhere in the information security product space is there more convergence then here. In a group that used to contain IDS, IPS, anti-malware gateways, email gateways and numerous other specialized types of gateways, we see everything converging into universal threat management (UTM) tools. Even where the IPS still reigns, only an IPS that can be part of a bigger picture will survive.