Remediation is the process of mitigating a vulnerability or threat.
Remediation can happen WITHOUT an incident, but incident response requires remediation. If a security issue is discovered before an incident has occurred, then remediation can take place.
In Cybersecurity, incident response is defined as everything that needs to happen to investigate and recover from an incident.
In Cybersecurity, the lifecycle of incident response is:
An Incident Response (IR) Playbook is a one size fits all solution that can be used to respond to any incident.
It might contain details such as:
Incident response requires many different parties:
This depends on the severity and type of incident as well as how public-facing it is.