Major liability incident management

Our corporate site Contact us

Download our latest Property, casualty and motor claims review full report now to access detailed insights and data-driven strategies that will help you reduce costs and stay ahead of emerging risks in 2026 and beyond.

Major liability incidents demand fast, confident action. If you're responsible for risk, in insurance, HR, finance, operations or at board level, then your choices in the first hours and days will shape the outcomes for people and the business. This article gives you clear, practical incident response steps you can use to prepare, respond and recover. It also explains how specialist support, including incident response services, can strengthen your position when it matters most. This can help improve your resilience against future incidents.

Why this matters to you

A single major liability event could include:

A catastrophic injury
Fatality
Pollution incident
Multi‑person harm

Just one liability event can cause lasting harm to people and lead to complex legal and insurance issues. Whether the incident occurs because of operational failure, a security breach, or even a cybersecurity incident such as a data breach, you cannot remove all risk. But you can control your response. The right approach helps to:

Protect lives
Protect your business
Preserve evidence
Maintain insurance cover
Improve financial resilience.

It also strengthens your incident management approach. This supports your ability to handle future attacks, security threats, and other disruptive events affecting your business operations.

Five essential steps you must take

Step 1: Prepare a clear crisis response plan

What to include

Define roles and responsibilities and set clear escalation triggers. This includes incident response roles and designated incident response team members.
Establish decision pathways and communication protocols. This includes an authorised spokesperson and a formal communication plan.
Agree insurer notification processes and legal contact points in advance as part of a documented incident response plan.
Create checklists for evidence preservation, data backup and access control, supported by practical incident response procedures.
Run scenario exercises with senior leadership, operations, HR, legal and communications to test the plan. Embed learning across the entire incident response process.

Why it matters

Documented, tested plans remove uncertainty and speed up decision‑making. This also reduces the risk of errors that could harm people, your business or prejudice your insurance position. A strong, effective incident response plan also:

Improves incident response capabilities
Supports faster response efforts
Gives security teams and leadership a repeatable structure similar to a formal incident response lifecycle.

When it goes wrong

In the absence of a plan, your action is reactive. We’ve seen instances where clients have responded to requests from the authorities and provided information that they didn’t need to. This was then prejudicial to the insurance position.

The first 48 hours after an incident are really important for information gathering and understanding the strength of your position. If there’s no plan in place, you’re eating into that window as you try to figure it all out. Without standardised response plans or an incident response playbook, you can lose valuable response time and increase the risk of further damage.

Step 2: Prioritise safety and preserve the scene

Immediate actions

Protect life: call emergency services and provide first aid if it’s safe to do so.
Remove or isolate ongoing hazards and evacuate if necessary. This includes isolating affected systems where digital infrastructure may be involved.
Secure the scene: limit access to essential personnel and log entries. Preserve CCTV, maintenance records and digital logs, along with any relevant security data and forensic evidence.
Avoid unnecessary cleaning, disposal or repair until evidence is recorded, unless safety requires immediate action.

Why it matters

Prompt safety measures could save lives. Preserving evidence protects your legal and claims position. Failing to secure the scene can make it harder to defend decisions or present a claim. Good incident handling at this stage can help in many ways, including:

Supporting later post incident analysis
Improving the process of resolving incidents
Helping your organisation to detect patterns that may prevent future incidents.

When it goes wrong

Disposing of key evidence can prejudice your position with your insurers and make liability determinations more complicated and drawn out. Preserving evidence is absolutely critical. Courts will look at cold, hard evidence rather than anecdotal accounts of what happened. If there’s no evidence, quite often there’s no defence.

Step 3: Notify authorities, insurers and appoint specialist advisers

What to do quickly

Report criminality or mandated issues to the police and relevant regulators (for example, HSE in the UK) as required.
Notify insurers in line with policy terms. Be mindful of timing and content requirements and avoid admissions of liability in public statements.
Appoint specialist legal counsel and consider crisis/PR advisers early. Legal advisers help manage privilege, disclosure and interview conduct. PR advisers help manage messaging and stakeholder concern, especially with external stakeholders.

Why it matters

Early, accurate notifications and the correct legal approach protects rights, controls disclosure and helps manage cost. Choosing advisers without checking policy terms can affect insurance contributions to legal costs. In complex cases involving cyber, a structured approach mirrors best practice found in the NIST incident response framework and guidance from the national institute community. It can also help to coordinate with a broader incident response team such as CSIRT, computer emergency response team, or security incident response team where relevant.

Step 4: Conduct structured, defensible internal investigations

How to run an effective investigation

Scope a fact‑based investigation focused on root causes and immediate corrective actions.
Use a mix of internal fact‑finding and independent technical or forensic specialists where needed.
Coordinate with legal advisers to protect privilege and ensure witness interviews are defensible.
Document who made decisions, why and when. Preserve timelines and chain‑of‑custody records for physical and electronic evidence.

Why it matters

A structured investigation creates a clear audit trail. This supports decision‑making, regulatory reporting and any future claims or litigation. It also identifies practical steps to prevent recurrence. This stage is critical in the entire incident response process as it:

Informs risk assessments
Strengthens incident response capabilities
Contributes to lessons learned and a robust post incident review.

When it goes wrong

Non-fact based (i.e. speculative) investigation reports can be quite incriminating, so it’s important to stick to the facts as they are known. Where investigation documentation is shared without legal privilege in place, it can be discoverable, which can harm your defence. Poor documentation can also undermine post incident analysis.

Step 5: Manage communications, remediation and welfare

Key actions

Use an authorised spokesperson to issue factual, measured updates to staff, families, regulators and other stakeholders.
Provide mental‑health and welfare support to injured people, witnesses and staff.
Implement and document remediation and capture costs for mitigation and business interruption claims.
Keep an audit trail of remedial actions, documents supplied to authorities and remedial expenditures.

Why it matters

Timely welfare and clear, factual communications reduce reputational harm and help staff recovery. Robust documentation of remediation and costs support your claims and demonstrates your commitment to corrective action. A strong communication plan, combined with disciplined response efforts, helps protect relationships with external stakeholders. This supports continuity across your business operations.

When it goes wrong

Communication internally and outwardly is really important. Being uncommunicative or appearing unsympathetic can cause reputational damage. In the day of social media, the impact can be amplified. Being too communicative can also be a problem and prejudice your position legally. It’s important to engage the right communication specialists to strike the right balance. In some cases, poor communication can:

Complicate incident management
Delay resolving incidents
Make recovery from a major event more difficult.

How specialist support strengthens your position

Expert advisers can help you move faster and with greater confidence, by providing:

Crisis planning and exercising facilitation can close practical gaps in your response plan. This includes reviewing incident response tools, incident response technologies, and broader security solutions. These can support more effective decision-making.
Guidance on evidence preservation and insurer notification to protect cover. This helps your organisation accelerate incident response through clearer governance, stronger coordination with security personnel, and more robust security operations.
Access to forensic, technical and legal expertise to run defensible investigations. This includes support from a cyber incident response team or specialists in computer security incident response where a cyber attack, cyber threats, insider threats, or other digital factors are relevant to the loss.
Quantification and presentation of business interruption and mitigation claims to support the recovery process. This is particularly important where organisations need to assess operational disruption linked to suspicious activity, compromised systems, or failures in security information and event monitoring.

In more complex matters, specialist advisers may also help interpret data from:

Information and event management platforms
Endpoint detection and response tools
Extended detection capabilities
Other forms of security orchestration or orchestration automation and response.

This can help organisations detect threats and understand the role of entity behavior analytics. It also helps assess whether gaps in attack surface management or oversight by a chief information security officer contributed to the incident. For a private organisation, that level of specialist support can be valuable when legal, operational, and reputational risks overlap.

A final reality check

You cannot predict every scenario. However, prepared frameworks and relationship management can help limit harm and speed recovery. Clear roles, tested plans and early engagement with the right advisers make the difference between a loss and a managed recovery. This is especially true where liability events intersect with:

Digital exposure
Evolving cyber threats
Weaknesses in security operations.

If you're responsible for risk in your organisation, use these five steps as a checklist when reviewing your crisis readiness. For practical support tailored to your sector and risk profile, contact us to discuss your needs. We can help with preparing, testing and, if needed, navigating a major liability response with the benefit of proven incident response tools, specialist security solutions, and coordinated advisory support.

Meeting in office with team discussing ideas

Article

Major liability incident response: Five steps to protect your position

Why this matters to you

Five essential steps you must take