The term "security incident response" in cybersecurity refers to the systematic approach taken to manage and mitigate security breaches or incidents. This process includes identifying, assessing, and responding to threats to minimize damage and restore normal operations quickly. A well-defined incident response plan is crucial for organizations to ensure rapid communication among teams, outlining roles and procedures for dealing with incidents effectively. The goal is to reduce the impact of security breaches on business operations, protect sensitive data, and maintain customer trust.