Dependent Business Interruption (DBI)

April 11, 2025

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cyber risk assessment insurance cybersecurity best practices define rmm authentication TPRM ecosystem flaw hypothesis methodology high assurance guard 3rd party third-party CISODependent Business Interruption (DBI)

Dependent business interruption (DBI), also known as contingent business interruption (CBI), is insurance coverage that protects businesses from financial losses caused by disruptions to their suppliers, customers, or other key third-party entities, essentially covering the financial impact of a third-party’s operational issues on the insured business. 

Business Interruption insurance coverage is a critical part of third party risk management (TPRM) strategy. 

What it is:

DBI is a type of insurance that provides financial protection when a business’s operations are negatively impacted by a disruption at a third-party provider, such as a supplier, vendor, or customer. 

How it works:

When a key supplier’s facility is damaged or a major customer’s operations are halted, insured business experience loss of revenue and incur additional expenses. DBI coverage helps to offset these losses. 

Examples:
  • An outage at an outsourced web hosting provider prevents an online retailer’s website from operating.
  • A Manufacturer cannot produce goods when a critical parts supplier’s facility is damaged by a hurricane. 
  • A major customer’s operations are halted by flood, suspending sales. 
Key Considerations:

Supply Chain Risk: DBI is crucial for mitigating supply chain risk, as businesses often rely on third-party providers for essential services and materials. 

Coverage: Some policies only address technology-related disruptions, so businesses should seek coverage that encompasses both IT and non-IT vendors. 

System Failure Trigger: A robust cyber insurance policy should include a “system failure trigger” for DBI, ensuring coverage for disruptions caused by system failures, not just cyberattacks. 

Limitations: DBI typically covers losses resulting from disruptions to suppliers, customers, or other third parties, but it doesn’t cover losses from direct damage to the insured’s own property, which is covered by property insurance