I've come across several such ES instances that are 100% exposed to the world without even trying, and ES is by no means the first tool to have this problem. Pe

I've come across several such ES instances that are 100% exposed to the world without even trying, and ES is by no means the first tool to have this problem. People are never going to stop doing this. Making it annoyingly difficult within ES just weakens them such that some other "wow it's so easy" search product will be better positioned to eat their lunch.