During which phase of the incident response process do you define and implement your general defenses against Netcat?

Eradication involves removing a threat or malicious tool from a compromised system after it has been identified and contained, not defining preventive defenses.

Identification involves detecting and confirming that a security incident has occurred, not implementing general defenses.

The Preparation phase is where organizations establish defensive controls, policies, and countermeasures before any incident takes place. Defining and implementing defenses against known attack tools such as Netcat - for example, blocking specific ports or disabling unnecessary services - is a proactive measure carried out during this phase. This distinguishes Preparation from reactive phases like Containment or Eradication.

Containment involves limiting the scope and damage of an active incident, not proactively defining defenses against potential attack tools.