Page 219 - CISSO_Prep_ Guide
P. 219
updated, and new staff trained or brought into the response
teams.
The plan should be reviewed by the incident response teams
regularly, and the team may execute a tabletop exercise where
they will step through the plan together as if they are responding
to a real incident. Team members with specialized skills should
practice their use of tools and ensure that they are prepared to
deal with a real situation competently and professionally.
Feedback
Every incident is a learning opportunity. The organization must
use the details of the incident to improve their processes,
incident response capability, and train their team members. All
team members and affected departments should be involved in
the feedback process. The input of each participant should be
encouraged, and efforts should be made to avoid finding blame
or criticizing other participants. All lessons learned should be
documented, and an action plan to address those items should be
created.
Reassess Risk
An incident is the result of an unmitigated risk, and the incident
management team needs to ensure that they have found the root
cause of the incident, not just the symptoms. This analysis will
lead to a reassessment of the risk and vulnerabilities of the
organization and the evaluation of the effectiveness of the
controls that are in place. Adjusting controls, patching and
hardening systems, reviewing procedures, and planning for the