The five stages of security incident management are:
Preparation: This is the initial phase where an organization sets up its incident response plan, trains staff, and prepares the necessary tools and resources to handle security incidents effectively. For example, a company might create a detailed playbook for responding to various types of cyberattacks.
Identification: During this stage, the organization identifies that a security incident has occurred. This could be through monitoring tools, alerts from employees, or external notifications. For instance, an organization might detect unusual network traffic that indicates a potential data breach.
Containment: Once an incident is identified, the next step is to contain it to prevent further damage. This might involve isolating affected systems, shutting down certain services, or blocking malicious IP addresses. For example, if a malware infection is detected, the organization might quarantine the infected computers to stop the spread of the malware.
Eradication: In this phase, the organization works to remove the root cause of the incident. This could involve removing malware, patching vulnerabilities, or changing compromised credentials. For example, after identifying a phishing attack, the organization might change all the passwords that were potentially exposed.
Recovery and Lessons Learned: The final stage involves restoring normal operations and reviewing the incident to learn how to prevent future occurrences. This includes restoring systems from backups, updating security measures, and documenting the incident for future reference. For example, after a ransomware attack, the organization might review its backup procedures and update its security protocols to better defend against similar attacks.
For organizations looking to enhance their security incident management capabilities, cloud-based solutions like Tencent Cloud's Security Incident Response Service can provide robust support, offering advanced threat detection, rapid response capabilities, and comprehensive incident management features.