My post was on topic. And it was straight to the point.
I think you are the one who doesn't get it, or else you just want to engage in idle talk.
First, security isn't just about the hardware and the software. It's about you, too. And you, the generic you, are likely to be the security hole.
Second, you are asking how to improve the security of the device and all appearances are you don't know what it can do stock out of the box.
Third, you are saying you are an ordinary consumer, right? Then the standard onboard security features offer you much more than you actually will ever need. Learn about it.