Which of the following is a key aspect of AWS Incident Response?

Developing incident response plans is essential in AWS Incident Response as it establishes a framework for how the organization will respond to security incidents effectively. These plans outline the procedures for identifying, containing, eradicating, and recovering from incidents. They also define roles and responsibilities, ensuring that team members understand their tasks during an incident. Furthermore, having a well-defined incident response plan allows organizations to minimize damage, reduce recovery time and costs, and ensure compliance with regulations.

The other options do not support effective incident response. For instance, focusing solely on post-incident cleanup neglects proactive measures that can prevent incidents from reoccurring. Not having a communication plan can lead to misinformation and confusion during an incident, impacting the response's effectiveness. Finally, avoiding automation undermines the efficiency and speed of responses dramatically, as automation can help streamline tasks, enabling quicker detection and response to threats. Hence, developing incident response plans is a pivotal key aspect of handling incidents in AWS environments.