Explain the key steps in incident response, from identification through to recovery and post-incident review.

Incident response is a structured process that organizations use to manage and mitigate the impact of security incidents. The key steps are designed to ensure a swift and effective response, minimizing damage, restoring normal operations, and preventing future occurrences. These steps include identification, containment, eradication, recovery, and post-incident review. Each of these phases is critical and has distinct goals and activities. Identification is the first step and involves the detection and confirmation of a security incident. This phase requires monitoring systems for suspicious activities, analyzing alerts from security tools, and collecting information from user reports or security devices. For example, a security information and event management (SIEM) system may detect a spike in failed login attempts from a particular IP address, or an intrusion detection system (IDS) may alert on unusual network traffic. Additionally, a user may report a suspicious email they received or a website they visited that redirected them to an unusual page. Proper reporting channels should also be in place to facilitate prompt incident detection. Once a potential incident is identified, a preliminary assessment is needed to determine its nature, scope, and severity. This initial assessment determines the level of response required. The next step is containment, which involves limiting the scope and impact of the incident. The primary objective is to prevent the incident from spreading to other syst....