The [[SANS Institute|SANS]] Incident Response Process consists of six steps:
1. Preparation
2. Identification
3. Containment
4. Eradication
5. Recovery
6. Lessons Learned
It goes in a circle:
```mermaid
flowchart TD
p[Preparation] --> i[Identification]
i --> c[Containment]
c --> e[Eradication]
e --> r[Recovery]
r --> l[Lessons Learned]
l --> p
```
[[Incident Response & Computer Forensics, Third Edition]] is worth a read to learn more.
[The ATC RE&CT framework](https://atc-project.github.io) is an interesting implementation of the lifecycle.