Regularly testing your border defenses and internal network protections are integral to keeping adversaries out of your network. But, to paraphrase a Bible verse, it is not only what goes into a network that causes problems, but what comes out of it. Knowing what is leaking out of your network is a critical component of your security posture. Emissions testing your network should be a regular part of your security plan.
There are several different security problems that can be detected through observing and monitoring outbound traffic. Generally, these break down into detecting evidence of malware or . . .