# Post-Incident Lessons Learned Report

## Incident Information
| Field | Value |
|-------|-------|
| Incident ID | |
| Incident Type | |
| Severity | |
| Date Detected | |
| Date Resolved | |
| Review Date | |
| Facilitator | |

## Incident Summary
[Brief factual description of the incident]

## Response Metrics
| Metric | Value | Target | Met Target |
|--------|-------|--------|------------|
| Dwell Time | | < 24 hours | Yes/No |
| MTTD (Detection to Triage) | | < 15 min | Yes/No |
| MTTC (Detection to Containment) | | < 4 hours | Yes/No |
| Eradication Duration | | < 24 hours | Yes/No |
| MTTR (Eradication to Recovery) | | < 48 hours | Yes/No |
| Total Incident Duration | | < 7 days | Yes/No |

## Timeline
| Date/Time (UTC) | Event | Actor |
|-----------------|-------|-------|
| | Initial compromise (estimated) | Threat actor |
| | First alert generated | SIEM/EDR |
| | Triage completed | SOC analyst |
| | Incident declared | IR lead |
| | Containment achieved | IR team |
| | Eradication completed | IR team |
| | Recovery completed | IT ops |
| | Incident closed | IR lead |

## What Worked Well
-
-
-

## What Needs Improvement
-
-
-

## Root Cause Analysis (5 Whys)
| Level | Question | Answer |
|-------|----------|--------|
| Why 1 | | |
| Why 2 | | |
| Why 3 | | |
| Why 4 | | |
| Why 5 | | |

**Root Cause:** [Summary]

## Action Items
| ID | Action | Owner | Priority | Deadline | Category | Status |
|----|--------|-------|----------|----------|----------|--------|
| 1 | | | High/Med/Low | | Process/Tech/People | Open |
| 2 | | | | | | |
| 3 | | | | | | |

## Playbook Updates Required
| Playbook | Change Description | Owner | Deadline |
|----------|--------------------|-------|----------|
| | | | |

## Detection Improvements
| Rule Name | Description | MITRE Technique | Priority |
|-----------|-------------|-----------------|----------|
| | | | |

## Participants
| Name | Role | Present |
|------|------|---------|
| | Incident Commander | Yes/No |
| | SOC Analyst | Yes/No |
| | IR Lead | Yes/No |
| | CISO | Yes/No |

## Meeting Notes
[Key discussion points and decisions]

## Approval
| Role | Name | Date |
|------|------|------|
| IR Lead | | |
| CISO | | |
