Security updates are good but the major of the weakness it's the human using the device, there wouldn't be any security update which can fight a dumb user, my humble POV.
I'm not saying you are dumb, what I'm saying it's from my POV security updates are redundant.
According what I know about devices security updates are meant to protect corporations interests they usually are not to protect you from being hacked it's more like to protect the corporations devices from you hacking it.