What You Should Receive After a Major Incident (Post-Incident Summary)

Last updated

May 13, 2026

Reviewed by

Reviewed by: IT Service Delivery Lead

Speakable Summary

After a major incident you should receive ashort written summary of what happened and what was done. Book a Fit Check tostandardize incident reporting so nothing is vague or missing.

Opening

When an incident ends, most SMBs want one thing.Clarity.

If the only outcome is “it’s fixed,” thebusiness is left guessing what changed, whether it is safe, and how to preventit from happening again. That uncertainty creates repeat incidents and weakenstrust.

This page explains what you should receive aftera major incident. It is a plain-English post-incident summary that makesrecovery measurable and prevents lock-in.

Direct Answer

After a major incident you should receive awritten summary that includes timeline, impact, actions taken, and preventionsteps. It reduces repeat incidents by documenting what changed and what will beimproved next.

LINK: IT Support page
LINK: Managed IT Services
LINK: Help Desk

What’s included vs what’s extra

Included   in a post-incident summary

Extra   items you may request

Timeline and impact

Forensic deep dive report

What was affected and what was not

Compliance or regulatory reporting package

Actions taken and why

Legal counsel coordination and letters

Vendor case numbers and timelines

Formal evidence packet for insurance

What was restored and verified

A full tabletop and DR exercise

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The summary should be short and readable

●    It should be written the same dayor next business day

●    It should include prevention taskswith owners

What a post-incident summary must include

1) Incident header

Incident name
Date and time window
Incident owner
Priority used
Communication channel used

2) Executive summary

What happened in one or two sentences.
What is working now in one sentence.

3) Impact statement

Who was impacted and how.
What workflows were blocked or degraded.

4) Timeline of key events

First detection time
Containment actions time
Vendor cases opened time and case numbers
Restore start time and restore completion time
Service restored time
Verification time and who verified

5) What was affected and what was not

Systems affected
Systems confirmed not affected
Accounts affected
Data locations affected

6) Actions taken

Containment steps taken
Credentials reset and session revocation steps
Device isolation or remediation actions
Config or rule changes applied
Why those actions were chosen

7) Vendor coordination

Vendors involved
Case numbers
Promised response windows
What the vendor confirmed
Any vendor delays that affected timeline

8) Recovery steps and restore points

What was restored
From what restore point or date
Where it was restored to
What verification was performed
What still requires follow-up

9) What changed

Exactly what changed in the environment.
This is the most important section because it prevents repeat confusion.

10) Root cause and contributing factors

Best current root cause in plain English.
Contributing factors that increased impact.

If root cause is not fully known, the summaryshould say so. It should also state what is being done to confirm it.

11) Prevention tasks

List the prevention tasks created after theincident. Each task should include owner and target date.

Examples of prevention tasks

●    Enforce MFA for a group that wasmissing it

●    Remove unnecessary admin accounts

●    Patch a vulnerable system

●    Add backup monitoring alerts

●    Schedule restore testing

●    Update change control rules

12) Documentation updates

What documentation was updated.
What documentation still needs updating.

13) Lessons learned

One short section. What worked well and whatneeds improvement.

Are incident costs included in monthly maintenance

No. Billable incident work is not monthlymaintenance.

Any paid work performed to respond, recover,restore, rebuild, or remediate is project work, and the post-incident summaryshould list what was approved and what it cost.

If additional work is recommended after theincident, it should be listed as a separate proposed project that will bequoted and approved before starting.

How to use the summary as an SMB

Use it to prevent repeat incidents

The prevention tasks are the real value. If thesummary does not include tasks, the business will repeat the same pain.

Use it to avoid lock-in

A good summary documents what changed and wherekey information lives. This protects you if staff changes or if you switchproviders.

Use it to support insurance and leadership decisions

Clear timelines and actions support claims andbudget decisions. Vague incident notes do not.

LINK: FAQ
LINK: Cybersecurity
LINK: Backup & Disaster Recovery

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