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Ransomware and Cyber Insurance: What a Policy May Do After an Attack

A ransomware attack encrypts the systems a business runs on and usually arrives with a demand. A cyber policy can fund much of the response, but what happens in the first hours affects both recovery and coverage. Here is what to know beforehand.

Reviewed by David Gleason, Principal — October 11, 2026

Filed under: Coverage & Endorsements

844-97-USAVE
CaliforniaGeneral information only, not legal advice — illustrative scenarios and coverage, subject to change without notice. Content may be out of date or contain errors, and requirements vary by city, county, state, agency, project, contract, carrier and policy, among other factors; verifying what applies to your own situation is your responsibility. Full disclaimerThis page describes general concepts commonly seen in commercial insurance — not a statement of what a specific policy covers, what a particular carrier requires, or what a contract, lender, project owner or public agency will accept on any individual project. Coverage and requirements vary by carrier and policy; confirm current terms against your own issued policy or with a broker before relying on this for a specific decision.

What ransomware does to a business

Ransomware encrypts files and systems so they cannot be used, and many groups now also copy data first and threaten to publish it. The business loses access to accounting, scheduling, customer records and sometimes production systems at once, and may face notice duties if personal information was taken.

The cost is rarely the demand alone. It is forensic investigation, rebuilding systems, overtime, lost revenue while operations stop, legal advice and notification — costs that arrive whether or not any demand is paid.

Files and systems are encrypted and unusable
Data may be copied first and threatened with release
Operations, billing and records can stop together
Response and downtime usually cost more than the demand

What a cyber policy may pay for

Depending on the form, a cyber policy may pay for incident response and forensics, legal advice, data restoration, income lost during the outage after a waiting period, extra expense to keep operating, notification if personal data was taken, and liability for related claims. Extortion coverage, where included, may cover negotiation and, subject to law and carrier consent, a payment.

Most policies require prompt notice and the use of approved or consented vendors. Calling the carrier's incident-response line early, before hiring outside help, is often a condition worth knowing in advance.

Incident response, forensics and legal advice
Data restoration and income lost after a waiting period
Notification if personal data was taken
Extortion coverage subject to law, consent and conditions

Federal guidance on paying a ransom

The U.S. Treasury's Office of Foreign Assets Control issued an updated advisory on September 21, 2021 stating that the government strongly discourages paying ransom or extortion demands, and that facilitating payments to sanctioned parties can carry sanctions risk. Carriers and incident-response firms take that into account before any payment is considered.

The Cybersecurity and Infrastructure Security Agency's #StopRansomware guide offers prevention steps and a response checklist, and incidents can be reported to CISA and the FBI's Internet Crime Complaint Center.

OFAC strongly discourages ransom payments
Payments to sanctioned parties can carry sanctions risk
CISA's #StopRansomware guide includes a response checklist
Incidents can be reported to CISA and the FBI's IC3

Preparing before an attack

Separated backups that have been restored in a test are the single control that most changes the outcome, because they let a business rebuild without relying on an attacker. Multi-factor authentication, endpoint detection, prompt patching and a written plan naming who to call first reduce both the odds and the damage.

Those are also the controls underwriters ask about. See what a cyber insurance application asks, and for a plant or production operation, manufacturing cyber insurance.

Separated, tested backups change the outcome most
Multi-factor authentication, endpoint detection and patching
A written plan naming who to call first
The same controls drive underwriting

More on Cyber & Technology Risk

Frequently asked questions

Does cyber insurance cover ransomware?

Many cyber policies cover ransomware response — forensics, restoration, lost income after a waiting period and notification — and some include extortion coverage, subject to law, carrier consent and conditions.

Will my cyber insurance pay the ransom?

Only where the policy includes extortion coverage, the payment is lawful and the carrier consents. Federal guidance strongly discourages ransom payments and warns of sanctions risk.

Who should I call first after a ransomware attack?

Usually the carrier's incident-response line or your broker, because many policies require prompt notice and approved vendors. Incidents can also be reported to CISA and the FBI's IC3.

Does ransomware trigger California breach notice?

If personal information was acquired, or is reasonably believed to have been acquired, notice duties under Civil Code section 1798.82 can apply, now within 30 calendar days of discovery under SB 446.

What reduces ransomware damage the most?

Separated backups that have been tested by restoring them, plus multi-factor authentication, endpoint detection, patching and a written response plan.

Official resources

Verify current licensing, regulatory and program requirements directly with the responsible agency — this is general information, not legal advice, requirements change without notice, and what is summarized here may be out of date or contain errors. Confirming what applies to your own city, project, contract and policy is your responsibility.

Updated October 11, 2026