Nervous Nat often sends emails with screenshots of what he thinks are serious incidents, but...

When you receive a screenshot from Nervous Nat and go through a list of questions, check resources for information to determine the nature of the screenshot, and assess the condition of your network, you are engaging in the Detection and Analysis (or Identification) phase of Incident Response (IR). This phase is about identifying potential security incidents based on reported concerns, anomalies detected by security tools, or through the analysis of security alerts. In this scenario, despite the historical context of false positives, each report is treated seriously, requiring you to collect and analyze information to determine whether a real attack is happening. This involves verifying the validity of the incident, assessing its nature, scope, and impact, and deciding on the appropriate next steps. The detection and analysis phase is critical for determining the course of the IR process, including whether escalation is needed and what response measures should be initiated.