Reconnaissance countermeasures

One of my favorite movies is The Hunt for Red October. When the torpedoes are coming in, Sean Connery yells, "Release the countermeasures!" And this is exactly what we need to do here. We need to understand the countermeasures for reconnaissance and what we need to be looking for when performing penetration tests (pen tests). You might know GI Joe's famous quote, "Knowing is half the battle." This also applies to us. Knowing what you are exposing and knowing what the attacker is capable of is half the battle.

In this section, I'll show you how to put your shields up and implement those countermeasures, as well as some best practices for reconnaissance. I'll also show you how to set up for a pen test and the actual workflow of what you should be tracking when doing reconnaissance.

Countermeasures

So, how do you defend yourself against the kind of reconnaissance techniques we reviewed earlier?

The first thing...