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Insurance Glossary ​

The reason cyber insurance wording is hard to read is largely its dense terminology. This page explains the most common terms in everyday language, so you can cross-reference them while reading a policy or article.

TermExplanation
UnderwritingThe process by which an insurer assesses risk when you apply for cover. Cyber insurance underwriting usually requires a security controls checklist (such as multi-factor authentication, endpoint detection, offline backups).
Duty of fair presentationWhen applying, you must honestly and completely disclose matters the insurer asks about, including past cyber incidents, deployed security measures and data volume.
Utmost Good FaithThe foundational principle of an insurance contract: both parties must disclose material information to the highest degree of good faith. The insured's side is mainly reflected in fair presentation.
Material FactInformation that would affect the insurer's decision on whether to accept the risk, or how to price it. Failure to disclose a material fact may affect the validity of the policy.
Prior Known CircumstancesCyber events or vulnerabilities that occurred, or reasonably should have been known, before the policy took effect; generally not covered.
Standard / Loaded / Exclusionary underwritingThree common underwriting outcomes: cover on standard terms, cover with an increased premium, or cover after excluding certain risks from protection.
TermExplanation
PremiumThe amount paid periodically in exchange for coverage. The cyber insurance premium usually depends on industry, data volume, maturity of security controls and past incident history.
Deductible / ExcessThe amount the insured must bear for each claim, with the insurer paying only the portion above it. The higher the deductible, the lower the premium usually is.
Co-insuranceAn arrangement where the insurer and insured share costs in proportion, e.g. the insurer pays 80% and the insured bears 20%.
Sub-limitA separate compensation cap set under the overall limit for a specific coverage item, usually non-fungible. For example, incident response, business interruption and ransom each have their own sub-limit.
TermExplanation
ExclusionsCircumstances explicitly listed in the policy as not covered. Common cyber exclusions include prior known circumstances, war, specific AI risk exclusions, and failure to meet minimum security requirements.
Sum Insured / Benefit LimitThe maximum amount a policy will pay for a coverage item, which may be per occurrence, per year, or for the policy period.
IndemnityPayment based on actual expenditure, not exceeding the actual cost, usually subject to a cap.
Fixed BenefitPayment of an agreed amount, irrespective of actual expenditure.
Cooling-off PeriodA specified period after policy delivery during which the policyholder may cancel and recover premiums paid (possibly less any fees incurred).
TermExplanation
ClaimThe procedure by which the insured applies to the insurer for compensation under the policy wording. Cyber incidents usually require notification as soon as possible to trigger incident response.
Claim Period / Time LimitThe time limit set in the wording for submitting a claim. Missing it may affect claim rights.
SettlementThe insurer's decision on a claim, which may be full, partial or denied.
SubrogationAfter paying, the insurer acquires the right to recover from the third party that caused the loss (e.g. the attacker or a negligent service provider).
Double InsuranceMore than one policy covering the same risk and same interest. Compensation is usually shared proportionally, without any extra profit.
Insurance Complaints BureauAn independent complaints body handling insurance claims and related disputes. Please refer to its public guidelines for the exact scope and monetary limits.
TermExplanation
Public LiabilityLegal liability arising from bodily injury or property damage to third parties caused by business activities. Cyber insurance's third-party liability covers compensation and notification costs arising from a client data breach.
Employee Compensation InsuranceInsurance an employer takes out for its statutory liability for work-related injury or death of employees during employment.
Business InterruptionCoverage for lost profits or fixed expenses during a business suspension caused by an insured incident (e.g. systems down due to ransomware); one of the core first-party covers in cyber insurance.
Replacement CostThe cost to rebuild or repurchase with new equivalent items, usually higher than depreciated actual value.
Actual ValueThe value of an item at the time of loss (after depreciation).

These terms have a dedicated section: Cyber Security and AI Insurance (including Products and Coverage Structure and the Education Hub).

TermExplanation
Cyber InsuranceInsurance covering both the insured's own losses (first-party) and liability to third parties (third-party) arising from cyber incidents, usually with incident response services attached.
First-party CoverCovers the insured business's own losses, such as incident response costs, business interruption, and data restoration.
Third-party LiabilityCovers the insured business's liability to others (clients, partners, regulators), such as data breach notification and compensation.
Incident ResponseA series of actions after an incident — digital forensics, legal, PR and crisis management — mostly carried out by a specialist team arranged under the policy.
BEC (Business Email Compromise)Attackers impersonate or hack email accounts to induce a business to transfer funds to their account; many policies set a separate sub-limit.
RansomwareMalware that encrypts a business's files and demands payment for the decryption key; recently it also steals data to threaten public release.
Digital ForensicsProfessional work to collect and analyse digital evidence after an incident, to determine cause, scope and impact.
Social EngineeringTricks that exploit human weakness (rather than purely technical vulnerabilities) to obtain credentials, funds or data, such as scams impersonating executives or suppliers.
Prior Known CircumstancesCircumstances that occurred or should have been known before the policy took effect; generally not covered.
AI ExclusionA clause in a policy that excludes "legal liability arising from the use or deployment of artificial intelligence".
AI HallucinationAI-generated content that appears plausible but is actually wrong, potentially causing third-party reliance loss.
Agentic AIAn AI system that can plan and execute tasks on its own, e.g. calling tools or making decisions autonomously.
Human-in-the-loopAn AI oversight model in which a human retains decision authority.
Embedded InsuranceAn arrangement that embeds insurance directly into a product or service sales flow, e.g. obtaining coverage when purchasing a technology service.
Cyber ResilienceAn enterprise's ability to maintain operations and recover quickly after a cyber attack.
Cyber Resilience Assessment Framework (CRAF)An assessment framework under the Insurance Authority's Cyber Security Guideline, comprising inherent risk assessment, maturity assessment, and threat-intelligence-based attack simulation.
Underwriting QuestionnaireThe security and risk questionnaire an insurer requires before cover; the core basis for cyber insurance pricing and underwriting.

HK.Insure is a Hong Kong Cyber Security Insurance information hub. We study how cyber insurance works in Hong Kong and compare enterprise solutions from global carriers, supported by Henderson Insurance Consultants Limited (licensed insurance agency FA2958) for local Hong Kong business insurance. This site provides general information and education only; we do not sell insurance products, quote premiums, or arrange cover, and nothing here is legal or insurance advice. All cyber and AI risk figures are drawn from official publications with sources and dates cited. Site photos are from Unsplash — see Photo Credits for licences and attribution.