Incident Response
Practical How-ToPart 3 of 4

Build Your One-Page Incident Response Plan

A sequenced plan sized for organizations without dedicated security staff.

4 min read

Most incident response guidance is written for organizations with a security operations center and an on-call rotation. That guidance is useless to an organization with six employees and no IT department, so it gets ignored, and the plan never gets written.

What follows is a sequenced plan. Five steps, ordered by priority. Most of them cost nothing, and the whole plan can realistically be built in a single afternoon.

How to use this: Work through these steps in order. Each one strengthens your ability to respond. The document that results does not need to be long. One page is enough if it answers the right questions.
The five steps at a glance
1
Name a decision-maker — who calls the shots under pressure
Free / 1 hr
2
Build the call list — phone numbers, not email addresses
Free / 1 hr
3
Define what you tell people, and when — clients, donors, and staff
Free / 1 hr
4
Know what to preserve — do not let good intentions destroy evidence
Free / 1 hr
5
Test it once — a plan nobody has read is a document, not a plan
Free / 30 min
1
Name a decision-maker Free
Time: about 1 hour  •  What you need: a conversation with leadership

During an incident, someone will need to decide whether to disconnect systems, pay a ransom, or notify clients before the full scope is known. If that person is not named in advance, these decisions get made by committee, under pressure, often too late.

Do this now
  • Name one person with the authority to make fast decisions during an incident, and one backup if that person is unreachable.
  • If you have a board, agree in advance on what triggers board notification and how fast.
  • Write both names down in the plan. Do not rely on it being obvious in the moment.
2
Build the call list Free
Time: about 1 hour  •  What you need: existing vendor and service contacts

In the first hours of an incident, you will need phone numbers, not email addresses, because email may be exactly what the attacker controls. Assembling this list during a calm afternoon is far easier than assembling it during a crisis.

Do this now
  • List phone numbers for your IT or managed service provider, your cyber insurance carrier if you have one, an attorney familiar with breach notification law, and your bank's fraud line.
  • Add your cyber insurance policy number and any incident hotline listed on the policy. Many carriers require notification within a specific window to preserve coverage.
  • Keep this list somewhere accessible if systems are down: a printed copy in a desk drawer works.
3
Define what you tell people, and when Free
Time: about 1 hour  •  What you need: a conversation with leadership and, if possible, legal counsel

Clients, donors, and staff will find out something happened. The only real choice is whether they hear it from you, on your terms, or from someone else, on theirs.

Do this now
  • Write one or two sentences describing what you owe clients or stakeholders in the event of a breach, and roughly how quickly.
  • Check your state's breach notification law for specific timing requirements. Many have strict statutory deadlines tied to specific types of data.
  • Decide who drafts and approves external communication during an incident, so it is not written from scratch under pressure.
4
Know what to preserve Free
Time: about 1 hour  •  What you need: a basic understanding of your systems

Evidence gets destroyed by accident more often than by malice. A well-meaning staff member reboots an infected machine to "fix it," and in doing so erases the exact information an investigator needed.

Do this now
  • Write a simple instruction: if a system is suspected to be compromised, disconnect it from the network but do not turn it off or reinstall anything.
  • Identify who is authorized to make changes to affected systems during an incident, so untrained good intentions do not overwrite evidence.
  • If you use a managed service provider, confirm in advance whether they retain logs, and for how long.
5
Test it once Free
Time: about 30 minutes  •  What you need: the plan you just built and 30 minutes with your team

A plan that has never been read by the people expected to use it is a document, not a plan. A short walkthrough now saves confusion later.

Do this now
  • Walk through a simple scenario with your team: "Someone clicks a phishing link and enters their password. What happens next?"
  • Confirm everyone knows who the decision-maker is and where the call list lives.
  • Put a reminder on the calendar to review the plan every six months, or after any staff change in a named role.

What this gets you

This plan will not prevent an incident. Nothing fully does. What it does is compress the most damaging period of any incident, the first confused hours, into a sequence of decisions that have already been made in advance.

The honest framing: None of this requires a security team, a security budget, or a security background. It requires about four and a half hours of focused work and the decision that a plan made in a calm afternoon is worth more than judgment exercised in a crisis.

When this plan is in place

Organizations with even a basic response plan consistently recover faster and at lower cost than organizations without one, regardless of the sophistication of their technical defenses. Once this plan exists, the natural next question is how to keep it alive: how often to test it, who else needs to know it exists, and how leadership stays engaged with it over time. That is the subject of next week's final post in this series.

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