Ubuntu security variant?
So I've noticed that there are quite a few distros dedicated to security and firewalls. Ubuntu has a variant for studio work, one for education, and a couple for low-resource. But what about security? Has anyone thought about having a security-oriented variant? There's much security software out there for Linux. Alpine has PaX and SSP for example. The downside for me with Alpine, though, is it isn't based on Ubuntu and doesn't have Ubuntu's repos. So why not get rid of that downside and have an Ubuntu security variant? It is possible, right? Just wanted to hear your thoughts.
System specs: CPU - AMD Phenom II X4 830 @ 3.2GHz | GPU - AMD Radeon HD 7850 | MB - MSI 760GM-P23 | RAM - 4GB DDR3 1366 MHz | OS - Arch, Windows 7