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 fracti

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.