Our nearest neighbor is half mile away. We are very rural here. Our wifi is password protected. We are hill Billy’s and so are the neighbors. Thank you.
What does your modem/router show as data loss.
We had a similar problem with our cable provider (little mom and pop shop that no longer exists). But it was because he was a dimwit. He was looking at bytes and thinking we were using over a terabyte of data... when in fact, we were under 500 gb, well within our allowed usage.
Proximity is one parameter.
If someone hacked your uname/pwd, they would not have to be located anywhere near you.