This is a silly model, this is the incident response playbook from #cisa Like, it hasn't aged into a good strategy. It's just a bunch of activities dumped into a flow chart without deeper understanding of the actions. There are 3 circular loops in this. And there's no concept of operations to follow, like preparedness, response, and recovery phases. https://www.cisa.gov/sites/default/files/publications/Federal_Government_Cybersecurity_Incident_and_Vulnerability_Response_Playbooks_508C.pdf
The planning p from incident command system is ok, but at least it only has one loop in it. It's quite confusing and took me 3 years to actually grasp that it's just a meeting planner. The missing part for most folks I think are the meeting goals and agendas.
The emergency management community is not exactly better. We have the poete models of planning, organizing, equipping, training, and exercising which is an idea. And it's interesting to see cisa create a similar model for the information technology sector. But I'm concerned the cyber security field is just making it harder for other sectors to understand them.