Networks & Defense
Post-Incident Review
Also: postmortem, blameless review, lessons learned
A written review after an incident covering the timeline, root causes and concrete fixes, without assigning blame.
In more detail
A good review lists what happened and when, why the system allowed it, what worked and what did not, and a short set of changes with owners. It is blameless because people who fear punishment hide mistakes, and hidden mistakes recur.