Jack Miller has the app that helps to find spies already on your Mac. Little Snitch.
This cleverly designed little app acts like an automatic, robotic, behind-the-scenes reverse firewall which protects you from apps already on your Mac that want to connect to outside servers without your knowledge. Every time any Mac app tries to make a connection through the network, Little Snitch stops it.
You’re in control again.
If you’re a bit paranoid about who or what is trying desperately to get into your Mac you may want to be a little paranoid about apps on your Mac that are desperately trying to make an outside connection for who knows what.
Jack is paranoid. But in a good way.