// definition
Dependent business interruption
Cover for business interruption caused by a third party
Short definition
Cover for specified business interruption losses caused by an outage at a third party defined in the policy. Eligible parties may include suppliers or service providers; reduced purchasing by a customer requires suitable cover. The policy sets the triggering event, eligible counterparties, time provisions and limits.
risk atlas
Knowledge map
Intuition
The trading relationship identifies the third party’s role; the policy then determines eligible losses.
Related analyses
- Cyber insurance: an outage at a customerTrading relationships, scope of cover and claim settlement.
Primary sources
- Beazley, cyber policy guidanceDependent Business Interruption Loss: supplier and customer examples within this published guidance.
- Hiscox, 04/23 specimenDefinitions, pages 3–6; cover and payment provisions, pages 7–8 and 15.
- CFC, 8 January 2026Commercial description of a named-customer extension, with an agreed aggregate limit per customer.