It is not a question about if but when someone will be eavesdropping on your network. It might not be a “break in” but a “break out”! Do you know how common it is to have your applications and systems communicate out to a third party? Way too often that communication is not known to you, nor even secure.
When I moved to the USA I found a company, LogRhythm, that developed a state of the art network monitor. I rarely blog about the company I work for but with the latest freemium version of NetMonI feel that the word needs to get out. The NetMon is a treasure for easy network forensics, understanding what is happening on the network or what has happened on your network.
See my recipe for Swedish Style Crawdads and don’t forget to check out the podcast (see link section)