Created and published by the FIRST Cybersecurity Communications Special Interest Group.
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The original version of this framework was based on the work of Richard Knight (University of Warwick) and Jason Nurse (University of Kent) 1.
It was refined by CERT NZ using information from interviews conducted with New Zealand-based organizations that had been the target of cyber security incidents. I would like to thank them again for sharing their experiences.
The report was internationalized for FIRST using examples taken from various national CSIRTs. It was then edited and refined by the FIRST Cybersecurity Communications Special Interest Group (SIG).
This is a guide for an organization to create a plan for public-facing communications in the event of a cyber incident.
The Framework gives a way of formalising and constructing decision-making on when to communicate, with whom and at what level, as part of an overall incident response plan.
The first version of this framework was created for New Zealand as part of CERT NZ’s advice for organizations. Subsequently it has been adopted by many international organizations and, as such, an internationalized version was required.
This is a living document, which means it will be updated and adapted as required for various audiences. Each major revision will be given a new version number. (See Appendices for revision changes.)
This document is written in US English.
The framework follows this construction.
Examples are given throughout and supplementary materials – such as templates and exercises – can be found in the Appendices.
This section covers the steps to take when an incident has started or you receive a report of an incident 2 that you are in control of. The roles and responsibilities of team members should be determined well ahead of time and listed in your overall incident response plan.
The Communications Lead (Comms Lead) will be aware of all communications between internal teams or out to external stakeholders. This includes executive teams, government officials, media, the public and any other stakeholders.
This role is essential to ensure a clear understanding of which groups have which pieces of information.
While it is preferable for the Comms Lead to have some communications skills, it is not a necessity. However, the creation of clear, pre-agreed response plans means the Comms Lead can be from any area. External incident response teams (including national CSIRTs) should be able to offer communications assistance for the creation of messages.
The Comms Lead does not necessarily need to be making decisions about the content of the communications or see every email or text message but they will need to know the communication has happened.
Depending on organizational structure, the Comms Lead may not be the final sign-off for certain communications. For example, a formal letter to a government Minister may require CEO or executive level sign-off. However, the Comms Lead will ensure all required edits and changes are made before sending to that final level.
Similarly the role can be split across functions. For example, external communications could be run by a communications expert while internal communications could be run by HR.
In terms of incident response chain of command, the Comms Lead usually sits at the same level as technical response and logistics leads, reporting directly to the Incident Response Coordinator.
Stakeholders is the term we use to refer to anyone with a connection to the organization.
The list of stakeholders will be determined what type of incident has occurred. It can be as broad as everyone who has contact with the organization or as few as internal staff.
As part of creating your communications response framework we recommend doing an audience mapping exercise to determine who your audiences are on a normal basis and the best ways to communicate with them.
A guide for this exercise can be found in the appendices.
The Comms Lead needs to make the following decisions throughout the incident.
They may not be able to answer these immediately and as such will require information updates during the incident.
The Comms Lead needs the following information as soon as possible. This can come from the wider Incident Response (IR) team or as part of the Comms Lead’s monitoring role.
What you don’t know is sometimes as important as what you do.
At the start of an incident, it is likely some of these pieces of information will be unknown, and that should be noted as well. As the incident progresses more information may be added that will affect your decisions.
The matrix below is used to determine a communications response to an incident. Each of the four quadrants – based on risk to stakeholders vs visibility – has a different communications approach. These quadrants and how best to approach each one, are outlined in the Order of communications section below.

Figure 1: Stakeholder risk vs visibility matrix for cyber incidents with example incidents
The information gathered by the Comms Lead in the initial stages of incident response allows them to place the incident into the matrix. This is not an exact science and it’s a good idea for the Comms Lead to agree on the placement with other response team leads.
Disclosures to Police, financial organizations, government agencies, and oversight groups may need to be done immediately.
These steps could already be part of the standard incident response plan and may not require your communications team. However, the Comms Lead should be aware of what has been reported and where. This information may be used in communications with stakeholders.
There will be laws and policies that your organization or the affected organization will have to comply with during an incident. This may include mandatory reporting to government or law enforcement.
The Comms Lead should have contacts at all of the organizations with applicable laws.
Many countries have laws covering data protection and information privacy. If you are involved in a data breach or other incident where data has been exposed, then you need to be aware of the exact wording of these.
Some considerations need to be taken as transmitting any sensitive information to an external party can lead to this information being made public – either inadvertently or as part of the legal process.
However, it is good practice to report any breach or potential breach, regardless of the level of severity, even if you are not sure if it meets the criteria of the law. Doing so, gives greater reassurance to your stakeholders. You can work with your contacts at the relevant agency to discuss the details of formal reporting.
Your organization may be legally obligated to report to the stock exchange, shareholders or other authorities depending on the incident type.
You may be based in a country that has laws about funding criminal or terrorist activities. As such, advice about paying ransoms need to take this into consideration.
It’s rare, but possible, that your organization may be bound by international agreements or laws. This can include information sharing agreements between organizations. It’s a good idea to be proactively aware of these.
Your organization may have agreements in place regarding communications about significant incidents with suppliers, distributors, unions, etc. These can be helpful in framing your message, as you should have clear parameters of disclosure.
There is a growing practice of organizations choosing to communicate beyond what's required by law. This can be a good way to build credibility and trust with your stakeholders.
The core argument behind this idea is that voluntary transparency is harder to fake and therefore more persuasive. Organizations that communicate proactively, consistently – and before they're forced to by legal requirements – build a different kind of stakeholder relationship than those that don't. This also follows an operating principle of "communicating by default".
This can be a difficult practice to implement as the response is usually “why say something if I don’t have to?” The answer, as with most communications, is that it raises trust levels. Again, the communications need to be balanced to ensure no personal information is given out or anything that could hinder the response, however, “getting out in front of the story” is a well-known communications tactic.
Note: this does not mean to immediately report an incident to the public when affected parties are still unaware, but to be proactive and open with your disclosures.
If you have cyber insurance, you will have reporting responsibilities to your insurer. They may also offer specific help with external communications and reporting.
“organizations that take responsibility and are seen to be proactively trying to address the problem are perceived in a positive light.” – Richard Knight and Jason Nurse 6
This is the part of the process that can be intimidating to those without a background in communications. However, by following the steps outlined in this framework and preparing standing lines and mapping your audiences, this can be a smooth process with few worries and you will see the preparation pay off.
These messages are a chance for your organization to demonstrate competence, reinforce stakeholder trust, and shape the narrative via well-crafted disclosures.
Internal and external stakeholders will get different messages, simply because they need to know different pieces of information.
When creating the messaging for external communications, you need to cover a lot of points while also being easy to understand and clear about what the next steps are.
Just like learning any new skill, creating messages will take practice. Resist the urge to use AI if possible, especially if you’re starting out. While AI can be a helpful tool in incident response, learning with AI or giving it full control over your messaging can lead to an overly generic tone and voice from your organization.
People are getting better at recognizing AI-generated text, and it can come across as less personal and even potentially uncaring or insensitive. For example if you are a stakeholder who has had information stolen, you might take exception to a message generated by a computer.
For more generic communications, such as warnings of new threats or vulnerabilities, AI generated messages can speed up your processes.
The availability heuristic is people’s tendency to act off information that easily comes to mind. In this context, we know that people start taking cyber security more seriously when they hear of an incident 8.
This can impact your communications as recipients are:
Resist the urge to create a bespoke email address for the incident. While the message can come from your CEO (or similar), it should be sent out via usual channels.
While you need to communicate clearly about what happened and will be happening, there is a very real risk that the attacker may use your communications as a signal to start a new phase of the attack or double down on their efforts.
This is where being linked into the technical side of the incident response becomes incredibly important. Early information gathering allows you to craft the proper messages for the situation.
You are not required to respond to any media queries, however, while it can seem like a good idea to decline them or otherwise downplay an incident, you run the real risk of losing the message to other commentators.
Having a set of pre-prepared statements for media queries is a good start. Even placeholder statements are better than silence.
While these seem cliché, they show that you are aware of the problem. They are a temporary solution; you won’t get away with these a few days into the incident. Resist the temptation to describe a cyber attack as an unexpected technology failure or glitch, or something easily fixed.
Any update on the situation is better than nothing. With no official comment journalists will go to other sources; this can lead to speculation and incorrect statements about the situation. Updates can be sent either as a full press release or via social media.
The type of incident will direct who you communicate with and when. The more serious and public facing the incident is, the sooner you will need to go out with some kind of message.
Using the diagram of risk vs visibility, you can sort incidents into four categories, which are listed in increasing risk and urgency for communications.

Figure 2: Stakeholder risk vs visibility matrix putting cyber incidents into quadrants
Low risk and less visible to the public. Direct communications may not be needed. Can be addressed via social media or website.
Low risk but visible to the public. These can usually be communicated via a written statement or media release. The scale of the outage may determine the timing, but these can usually go out without needing to delay.
High risk but low visibility to public. Initial communication directly to stakeholders should occur as soon as possible after discovery. A public disclosure must follow but can be done at a later date. Monitoring should be kept up to measure public visibility.
High risk and visible to the public. You will need to communicate quickly but cautiously. This can mean a short message to stakeholders to start, followed by messages over a longer timeframe. Media releases/responses will need to be short on details. Standing lines should be a priority.
Remembering that every message you send has the chance to be made public, so even internal communications should be cautious with details.
Internal stakeholders will need to know what is happening. This will usually occur directly after the Incident Response team is stood up.
Depending on the event, this message will need to explain:
If external stakeholders are affected, they should be contacted as soon as possible, determined by the scale of the incident.
Depending on the event, this message will need to explain:
The messaging will be pared back, however, as mentioned above in the section on balance. As part of this process, it may be necessary to stand up a call centre or provide extra staffing for your existing contact portal.
This communication is usually done in the form of email, however, physical letters can be sent as well, depending on the audience.
The more public facing the incident, the more likely you will need to put out a press release or respond to inquiries from media.
Any direct communication with media should always be done at least a day after communications have been sent to any affected stakeholder groups, to allow for delays in delivery. While it can be difficult, direct media queries should be put off with prepared statements.
It is totally acceptable to not do a press release. If the story hasn’t already been picked up, then there is no need to further spread the message.
These can go out at the same time as press releases or in lieu of one. For incidents with lower risk to stakeholders these can be used as a vehicle for your main message.
This is the crucial part. Your message needs to be clear and concise but also empathetic. Some of this section may seem basic but others have fallen into these traps.
A good message will provide the information stakeholders need to protect themselves and will demonstrate that you are doing your best to address the situation.
If you are contacting stakeholders directly via email, you need to ensure they read your message. This is tough because you need to create a subject line that sounds urgent without scaremongering or sounding generic.
Remember that people can receive dozens of emails every day from various organizations, yours may get lost.
There is no easy solution for this, sadly. There will always be those that ignore the message in their inbox. For this reason you should consider other paths for your message, such as social media.
You are the caretaker of your stakeholders’ data. This means you will need to offer an apology. The form of the apology will differ from country to country and with different audiences.
While it feels like you have been attacked by an external party or let down by a flaw in a piece of software, your stakeholders will want to hear an apology from you.
Even when stakeholder or customer is at fault (for example through password reuse) you will be expected to have mitigated through monitoring or another control.
This may be perceived as not taking the incident seriously. While you do not need to give the exact extent of the incident, it is unwise to use words like “only” or “just”.
This will also help you if the incident is larger than initially thought.
Depending on the type of incident your stakeholders may feel vulnerable and worried for their security. This is especially so in cases where they could be individually identified.
It is a good idea to list steps that stakeholders can take to protect themselves in the wake of the incident, the more people can do for themselves the more they feel secure. This can include:
If the incident involves finances, you can offer credit monitoring or other services for free.
Remember that the recipients may be reluctant to click links.
Blaming other parties can be seen as an attempt to dodge accountability. This includes cases of employee error. While a single person may be the cause of the incident, blaming them will be seen as poor organizational culture.
If the incident was caused by a known hacking group, do not name them or mention this at all. Doing so gives the group media coverage that they will use to gain notoriety and advertise their abilities.
If the incident was due to a service partner, refrain from apportioning blame to them publicly. You can sort out issues behind the scenes, as any public disagreements will result in damaged reputation for both parties.
Chunking the information into smaller pieces makes it easier to understand but also lessens the chances that the recipient becomes overwhelmed with the information. 11
Avoid jargon and keep everything simple. Don’t use a multi-syllabic word when a shorter one will do (for example, “utilize” instead of “use”). Longer, and more formal words can seem like you are trying to hide something.
For explaining aspects of the incident, you may need to dip into technical terms, however, keep these to a minimum and instead refer to other spaces (such as an explainer on your main website).
While this may seem obvious, too many times a message can inadvertently cause damage to your reputation down the track.
Often this is due to an underselling of the severity of the issue, an omission of key information or a falsehood that must be retracted.
You can omit incident response steps in your message in order to simplify the message and keep information out of the hands of threat actors. But conversely it can make it sound as though your organization is not doing a thorough job or has an incomplete plan. If you can say everything without compromising the message’s balance, then it is better to do so.
Depending on who your stakeholders are, you may need to alter your message, both in content and format. For example, some people are less likely to read emails and may prefer receiving a text message (from a legitimate source).
Similarly different groups of people may ignore calls to change passwords or take other steps to boost their own security. They may see it as a hassle or even as your responsibility.
Adding a “why” element to the steps can help this.
It may be that many organizations in your area are being affected by the same incident. You may consider doing a joint statement with them to show that you are not the sole target. This also allows you to pool resources.
Remember that the message will likely generate questions from stakeholders – even if you think you’ve covered them all, they will still come up with new ones.
Ensure your staff, especially those who deal with external stakeholders, are across the message and know what to say. This can include a list of key messages and answers for obvious questions that can be quickly responded to.
Depending on the incident, “after the event” may not be after a month or two, it may, in some instances, be ongoing. This means you may need to send updates for a long time. These should be short and kept to essential communications only. If an investigation is continuing, then stakeholders can expect to be updated.
There is also a chance the incident could flare up again (for example, a DDoS attack) or another incident could happen if attackers think you may be vulnerable. So be prepared to cover that scenario.
This is the section of your communications planning that can be the most important. The goal is to help your organization use the incident as a capability-building event, not just something to close out and forget about. This is a chance to review and evaluate your previous preparations and to improve your ability to respond in the future.
As with any part of an incident response, a debrief on how the communications went is essential. Part of this is to review your process, updating as required and pinpointing areas that can be improved on.
Some questions to consider as part of the review:
In some cases this may mean re-running some of the exercises, such as audience mapping, with any new information or lessons you have learned. This can also be a chance to refocus efforts, for example, if you spent a lot of time checking FAQs for the helpdesk but noone called through, then you can deprioritize that in the future.
You may want to talk to stakeholders, internal and external, to see how the message was received and what could be done better next time. If you use analytics on your emails you could look to see how many emails were opened, you can look at traffic statistics for any webpages you may have set up for the response. We would not recommend using social media comments as a reliable measure for feedback.
After an incident a lot of things need updating. For communications we recommend checking this list and making changes as necessary.
You may wish to create reminders to check these periodically or to update them when you do the regular review of your overall incident response plan.
| Version | Date | Notes on changes |
|---|---|---|
| 1.0 | 02/2024 | First finalized version of the template. |
| 1.5 | 01/2025 | First draft with international content. |
| 2.0 | 05/2026 | Finalized international version with full appendices and examples. Changed to US English. |
This can be used to create a greater understanding of your audiences. We have added examples into the template.
| Audience | Medium | Voice (always) | Tone (varies) |
|---|---|---|---|
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NEVER
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These are examples only and it is a good idea to fill out this table with as many team members as possible.
The following are examples to use to answer certain questions. We do not recommend using these exactly as written but change them to suit your own style, tone and language.
In general it is best to avoid using words like “hacker” or “attack” as they can cause some audiences to panic or raise further questions you may not be able to answer at the time.
What is happening? (if you do not have any information)
Note: the use of “attack” is fine, but can cause some audiences to panic unnecessarily.
When did this happen?
Note: the exact time of the incident doesn’t need to be shared, you can simply use the day or month if it occurred a long time before discovery.
What kind of attack is it? (if known)
Explain the type of attack broadly speaking without specifics and link to a trusted official site for more information.
Who did this?
Your audience will, in general, not get any useful information from knowing who is behind an incident. Moreover, naming a threat actor can make them more likely to continue their attack for future influence.
How did the attackers gain access?
Note: again do not give too much away.
What data was accessed? (in the case of a data breach)
Remember the rule to not say anything you may need to retract.
This was created for an international company that suffered a ransomware attack. It has been anonymized.
This example is taken from a data breach involving a tertiary education provider. It has been anonymized for this document. The audience is the students whose records were stolen.
This is the text of a message sent to users of Ticketek in Australia following a data breach. This is an excellently constructed message often used as an example of best practice.
1. A Framework for Effective Corporate Communication after Cyber Security Incidents, Richard Knight and Jason R. C. Nurse, 2020 ^
2. In this context an “incident” means any cyber security issue that requires a response. ^
3. See section on Responsibilities ^
4. Standing lines are explained further into the document. ^
5. https://www.privacy.org.nz/responsibilities/privacy-breaches/ ^
6. A Framework for Effective Corporate Communication after Cyber Security Incidents, Richard Knight and Jason R. C. Nurse, 2020 ^
7. The NIS 2 (Directive (EU) 2022/2555), Article 23(1) and 23(2), https://www.nis-2-directive.com/ ^
8. 25% of respondents said they are more likely to implement online security after hearing a cyber attack story – Cyber Change: Behavioural insights for being secure online, CERT NZ, 2022, pg42-43 ^
9. If it is uncertain if the incident is ongoing, treat it as such. ^
10. link will be available soon ^
11. Cyber Change: Behavioural insights for being secure online, CERT NZ, 2022, pg31-32 ^
12. Link removed for this document. ^
13. Phone numbers and email address removed for this document. ^