Which two items should be included in an incident report to be discussed during a...

Post-incident debriefs require evidence-backed documentation that enables learning and control improvements. The two most essential items are the incident timeline (D) and the devices/systems involved (E). The timeline reconstructs key events (first delivery, first click, first alert, containment actions, TRAP pulls, credential resets, policy changes) and supports measurable IR metrics (MTTD, MTTR). The “devices and systems involved” section defines scope and blast radius: which mailboxes were targeted, which users were impacted, what email systems were involved (gateway, cloud mail, endpoints), and which Proofpoint components contributed (TAP verdicts, URL Defense click logs, Smart Search traces, TRAP remediation). This information is the foundation for root cause analysis and for validating that remediation fully covered the environment (no missed recipients, no unremediated copies, no lingering compromised accounts). Software inventories and product manuals are generally not debrief deliverables, and adversary attribution speculation is discouraged unless it is evidence-based and necessary for risk decisions. Proofpoint IR best practice is factual, actionable reporting that directly drives preventive control changes.