Funny you should compare it to the Internet. I remember the days when you could post something online and not worry about it because 1) only a very tiny fraction of the world was online 2) even if you were online, good luck finding it unless someone told you where it was.

My main point being that amateur radio only has security through obscurity as it only takes one device locally listening/relaying your signal to invalidate the distance assumption in the same way people posting things online thought 'nobody's ever going to care about this post' all those years ago. A key difference being that you have no option to encrypt and the other party doesn't need to MITM you to get any potentially interesting information.

Sadly, you can get the same appreciation by listening to 7.200 for a few days right now.

> As far as your encryption concerns go, you have to go to extra effort for any of your ham transmissions to be heard by the whole world.

Being heard by the whole region is even worse.

So, how can I prevent the people in my region from hearing my plans when I broadcast them unencrypted?

> Far, far different from posting something on the internet.

I don't use public Internet fora as a cell phone replacement.

You advocated using amateur radio in that capacity.