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💥 '''Terrorism''' as an insurance concept refers to acts of violence, sabotage, or coercion carried out for political, ideological, or religious purposes that result in property damage, [[Definition:Bodily injury | bodily injury]], or [[Definition:Business interruption insurance | business interruption]] — and that present unique challenges for [[Definition:Underwriting | underwriting]], [[Definition:Risk modeling | risk modeling]], and [[Definition:Claims handling | claims settlement]]. Unlike most insurable perils, terrorism is characterized by deliberate human intent, making frequency and severity extraordinarily difficult to predict using conventional [[Definition:Actuarial analysis | actuarial methods]]. In many insurance markets, terrorism is explicitly excluded from standard [[Definition:Commercial insurance | commercial]] and [[Definition:Property insurance | property]] policies, requiring separate coverage through specialized programs or government-backed schemes.

🔍 The classification of an event as terrorism has direct implications for whether and how [[Definition:Insurance claim | claims]] are paid. Most [[Definition:Insurance policy | policies]] that address terrorism rely on a formal certification process — in the United States, for example, the [[Definition:Secretary of the Treasury | Secretary of the Treasury]] must certify an act as terrorism under the [[Definition:Terrorism Risk Insurance Act (TRIA) | Terrorism Risk Insurance Act]] before the federal backstop is triggered. Definitions vary across jurisdictions and even across policy wordings: some include only conventional attacks, while others extend to [[Definition:Cyber terrorism | cyber terrorism]] or [[Definition:Chemical, biological, radiological, and nuclear (CBRN) | chemical, biological, radiological, and nuclear (CBRN)]] events. Underwriters must carefully parse these definitional boundaries, because a slight variation in wording can mean the difference between a covered and an excluded loss. [[Definition:Reinsurance | Reinsurers]] are equally attentive to terrorism definitions when structuring their own [[Definition:Treaty reinsurance | treaties]] and [[Definition:Retrocession | retrocessions]].

⚠️ The September 11, 2001 attacks fundamentally reshaped how the global insurance industry thinks about terrorism. Prior to that event, terrorism was often silently included in standard property coverage, with little attention to accumulation risk. The resulting losses — among the largest in insurance history — led carriers to impose broad terrorism exclusions and prompted governments around the world to establish [[Definition:Terrorism pool | terrorism pools]] and reinsurance backstops. Today, terrorism occupies a distinct category in [[Definition:Risk management | risk management]] frameworks, and large [[Definition:Insurance carrier | insurers]] maintain dedicated terrorism underwriting teams. The peril also drives significant demand for [[Definition:Catastrophe model | catastrophe modeling]] innovation, as firms like [[Definition:Risk Management Solutions (RMS) | RMS]] and [[Definition:AIR Worldwide | AIR Worldwide]] develop probabilistic terrorism models that attempt to quantify a fundamentally unpredictable human threat.

'''Related concepts:'''
{{Div col|colwidth=20em}}
* [[Definition:Terrorism risk insurance]]
* [[Definition:Terrorism Risk Insurance Act (TRIA)]]
* [[Definition:Terrorism pool]]
* [[Definition:Political risk insurance]]
* [[Definition:War exclusion]]
* [[Definition:Catastrophe model]]
{{Div col end}}

Definition:Terrorism - Revision history

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