I mean, increasing security (or "security" if you want) moves the targets, by definition. In principal you would want to increase the security of all potential

I mean, increasing security (or "security" if you want) moves the targets, by definition. In principal you would want to increase the security of all potential attack vectors to some acceptable threshold. Increasing vector one above another vector just makes the other vector an easier target. This is how it works for all security in any context.