Three anonymised Irish SME scenarios where cyber insurance claims were denied — MFA gaps, BEC fraud, and unpatched systems. What went wrong and how to avoid it.

Across Donegal, Sligo, and throughout Ireland, over thirty percent of cyber insurance claims submitted by businesses are denied, reduced, or disputed. That figure, drawn from industry broker data and consistent with broader European patterns, represents thousands of businesses each year that paid premiums, experienced a breach, and then discovered their policy did not protect them the way they believed. The reasons for denial follow predictable patterns — and they are almost always preventable if the business understood its policy terms before the incident occurred.

The following three scenarios are based on composite real-world situations affecting Irish SMEs. Specific details have been anonymised. The patterns they illustrate are documented and repeatable.

Scenario One: The Donegal Engineering Firm and the Missing MFA

A small engineering firm in Donegal specialising in bespoke industrial components suffered a ransomware attack in the autumn of 2025. Attackers gained initial access through a remote desktop connection — an employee's account credentials had been stolen in a separate data breach months earlier and had been for sale on dark web credential markets. The ransomware encrypted the firm's project files, financial records, and client correspondence. Production stopped for eleven days.

The firm had a cyber insurance policy they had held for three years. They submitted a claim covering business interruption, data recovery, and incident response costs. The claim was denied.

Their policy contained a warranty clause requiring multi-factor authentication on all email accounts and remote access systems used for business purposes. The IT audit conducted during the claims investigation found that while the owner's account had MFA enabled, four employee accounts — including the one compromised — did not. The insurer's position was clear: the warranty was not met, and the claim was therefore not payable.

The cost of enabling MFA on four additional email accounts would have been zero. The cost of the uninsured loss was €94,000. An Garda Síochána's National Cyber Crime Bureau advised that MFA gaps are now the most frequently cited cause of credential-based attacks in Ireland.[^1]

Does your cyber insurance policy contain MFA or specific security control warranty clauses — and have you verified that every account meets those requirements? Book a free 20-minute strategy call — we'll review your policy terms against your actual security configuration.

Scenario Two: The Sligo Tourism Operator and the Authorised Transfer

A Sligo-based tourism operator received what appeared to be an email from their main construction contractor in early 2026. The email explained that the contractor had changed banks and provided new account details for an upcoming payment of €45,000. The email used the contractor's correct name, referenced the right project, and had a footer that exactly matched the contractor's normal email signature. An accounts payable employee processed the change and approved the payment.

Three days later the real contractor called to ask about the overdue payment. The fraud was discovered. The money was gone. The tourism operator reported the incident to An Garda Síochána and submitted a claim under their cyber insurance policy.[^2]

The claim was denied. The insurer's position was that the payment had been authorised — not extracted through a technical compromise of the operator's systems. The policy covered cyber events affecting the insured's own network. Business email compromise fraud, where an attacker impersonates a third party rather than breaching your system directly, fell under a crime insurance exclusion rather than the cyber policy. The operator did not have crime insurance.

This distinction — between cyber insurance and crime insurance — is one that many Irish brokers do not adequately explain. BEC fraud is now one of the most common forms of cybercrime affecting Irish businesses. The NCSC Ireland has issued multiple advisories on this specific attack pattern and the importance of verbal verification procedures.[^3]

Scenario Three: The Cork Retailer and the Unpatched System

A Cork-based retail business with an e-commerce site suffered a data breach in late 2025. Attackers exploited a known vulnerability in the business's content management system — a vulnerability for which a security patch had been released six months earlier. The breach exposed customer payment card data and contact details for approximately 3,000 customers. The business faced GDPR notification obligations to the Data Protection Commission and significant forensic investigation costs.

The business submitted a claim under their cyber insurance for data breach response costs, forensic investigation, customer notification, and regulatory support. The claim was partially denied.

The insurer accepted the forensic investigation costs but declined the data breach notification and regulatory support costs. Their position was that the breach had occurred because of a vulnerability the business should have known about — the patch had been publicly announced six months earlier — and that failure to apply a known critical patch constituted a failure to maintain the minimum security standards specified in the policy. The DPC investigation resulted in a formal warning and a requirement for remediation. The uninsured costs ran to €28,000.

Cyber insurance is not a substitute for security. It is a financial safety net that only catches you if you have met the policy conditions — conditions that most businesses have never fully read.

The Pattern Across All Three Scenarios

Each of the three scenarios describes a different type of incident — ransomware, fraud, and data breach — but they share the same root cause: the business did not understand what their policy required, and their broker had not made it clear.

The key takeaways are straightforward. Warranty clauses in cyber policies are enforceable — if you agreed that MFA would be enabled and it was not, the insurer has grounds to deny. Notification timelines are strict — most policies require you to notify the insurer within 24 to 72 hours of discovering an incident; missing this window can void coverage regardless of whether the claim is otherwise valid. BEC fraud and social engineering losses may require a separate crime policy rather than a cyber policy — confirm this with your broker before an incident occurs.

The NCSC Ireland provides a framework for organisations assessing their cybersecurity posture and the controls that underwriters expect to see. Using that framework to conduct a simple self-assessment before renewal, and comparing the results against your policy's warranty clauses, takes a few hours and can prevent exactly the outcomes described above.

Three Steps to Reduce Your Claim Denial Risk

Read your current cyber insurance policy's warranty and condition clauses — they typically appear in a separate section from the coverage summary. Make a list of every security control specified as required. Check whether you currently meet each one. If you do not, either remediate the gap or discuss with your broker whether the policy accurately reflects your situation.
Ask your broker explicitly whether your policy covers BEC fraud and social engineering losses, or whether these require a separate crime policy. Get the answer in writing. If your business makes regular supplier payments, this is a specific and significant risk that standard cyber policies often exclude.
Create a documented incident response procedure that includes your cyber insurer's notification number and your broker's emergency contact. Many claims are complicated or denied because notification did not happen within the policy's required window. The notification number should be in your phone and your response procedure — not buried in a policy document that nobody can find when systems are down.

Cyber Insurance Claims Denied: Three Irish SME Scenarios.

Scenario One: The Donegal Engineering Firm and the Missing MFA

Scenario Two: The Sligo Tourism Operator and the Authorised Transfer

Scenario Three: The Cork Retailer and the Unpatched System

The Pattern Across All Three Scenarios

Three Steps to Reduce Your Claim Denial Risk

Related Reading