Space Weather Losses: Which Coverage Path Fits You?

A severe space weather event could cause simultaneous losses worldwide without any physical damage, according to a paper from Acrisure Re (U.K.) Ltd. and ETH Zurich. The paper warns that such an event could lead to widespread, prolonged outages affecting transportation, telecommunications, financial services, and agriculture.

For buyers and brokers, this raises a practical question. Most policies are built around a trigger: a breach, a malicious act, or a physical peril. Space weather has no attacker and may leave no damaged property. So where do you place the risk, and what do you do about it at renewal?

The Decision You Are Facing

You need to decide how to handle space weather exposure in your program: accept it as retained risk, test whether your existing wording already responds, or pursue a negotiated or bespoke solution. No standard product is built for this peril today, so the choice is less about picking a product and more about picking a posture.

Key Factors That Affect Your Choice

Consider these factors before choosing a path.

• Operational Dependency. If your revenue stops when networks, satellite timing, or payment systems stop, your exposure is higher than your asset list suggests.
• Trigger Language. Business Interruption Coverage in most property forms requires direct physical loss or damage. A Stand-Alone Cyber Policy typically requires a security failure or, in some forms, a system failure. Read the actual trigger, not the summary.
• Supply Chain Depth. Contingent Business Interruption Coverage may matter more than first-party cover because your suppliers and service providers share the same exposure at the same moment.
• Aggregation. A global event hits many insureds at once. Insurers manage this through Aggregation Exposure Analysis, and that's why capacity for it, where it exists, tends to be sublimited or excluded.
• Waiting Periods and Outage Duration. Prolonged outages can outlast standard waiting periods and indemnity limits. Know both.

Path A: Retain the Risk and Build Resilience

Choose this if: your operations can degrade gracefully, your dependency on external networks is limited or well-mitigated, or no insurer is offering terms you can justify.

Then do this:

• Add space weather to your business continuity scenarios as a distinct event class, not a subset of "power outage."
• Map which critical functions depend on telecommunications, satellite-based timing or navigation, and utility supply. Set recovery objectives for a multi-day, multi-sector disruption.
• Identify manual or offline fallbacks for the functions you cannot lose.
• Use the NIST CSF Core Functions (Identify, Protect, Detect, Respond, Recover) to structure the work. Space weather mostly lives in Identify and Recover, which is where many programs are thinnest.
• If you are a critical entity, note that Network and Information Security Directive (NIS2) risk management duties cover continuity and crisis management regardless of the cause of disruption. Physical and environmental hazards are in scope.

Retention is a legitimate decision when it's documented. Record the scenario, the estimated exposure, and who accepted it.

Path B: Test Existing Wording and Close What You Can

Choose this if: you have meaningful exposure, you already carry cyber and property coverage, and you want to know what actually responds before paying for anything new.

Then do this:

1. Ask your broker for a written coverage analysis of a non-malicious, non-physical widespread outage. Request answers by coverage part, not a general reassurance.
2. Check whether system failure triggers exist in your Stand-Alone Cyber Policy, and whether they're sublimited.
3. Review infrastructure exclusions. Many forms exclude failure of power, telecommunications, or satellite services outside the insured's control. These clauses are the most likely blockers.
4. Look at the waiting period, the period of restoration definition, and any cap on Contingent Business Interruption Coverage.
5. Ask whether a Cyber Endorsement on your property policy narrows or widens the trigger.
6. Clarify First Notice of Loss obligations and any Insurer Consent Requirement before mitigation spending in a widespread event, since many insureds will be calling at once.

Expect the answer to be "partially, with gaps." That's still useful. You'll leave with a documented gap list instead of an assumption.

Path C: Pursue Bespoke or Parametric-Style Solutions

Choose this if: your dependency is concentrated, a prolonged outage would threaten solvency or covenants, and your broker can access specialty or reinsurance-backed markets.

Then do this:

• Ask whether a manuscript wording can define the trigger around an objective, measurable event rather than proof of damage. Non-physical, simultaneous losses are exactly where traditional adjustment struggles.
• Expect underwriters to lean on predictive analytics and Frequency-Severity Modeling. Space weather is observable and increasingly forecastable in the short term, but long-tail severity is hard to price. Be ready to share dependency maps and recovery data to support their modeling.
• Anticipate tight limits, high retentions, and a meaningful Rate on Line. Pricing reflects aggregation concerns and Reinsurance Cession constraints.
• Treat the Application Fraud Warranty seriously. Anything you state about resilience controls and fallback capability must be accurate, since it shapes how the policy responds.

This path takes time, so start well ahead of renewal.

Summary Matrix

Most organizations should do Path B at minimum, and many should pair it with Path A's resilience work. Path C is for the few whose operational dependency makes an uninsured, non-physical outage an existential question. Whichever you choose, write the reasoning down. When a global, simultaneous event does happen, the organizations that decided deliberately will be far better positioned than those that assumed someone else's policy had it covered.