The incident priority may dictate the containment strategy—for example, if you are dealing with a DDoS attack that was opened as a high-priority incident, the containment strategy must be treated with the same level of criticality. It is rare that the situations where the incident is opened as high severity are prescribed medium-priority containment measures, unless the issue was somehow resolved in between phases.
Post-incident activity
Real-world scenario
Let's use the WannaCry outbreak as a real-world example, using the fictitious company Diogenes & Ozkaya Inc. to demonstrate the end-to-end incident response process.
On May 12, 2017, some users called the help desk saying that they were receiving the following...