Cyber insurance readiness: what underwriters look for
Cyber insurers assess your organization's fundamental security posture before offering a quote. They look for evidence of proactive risk management, focusing on external attack surface hygiene, email security controls, and incident response preparedness. Demonstrating implementation of widely recognized standards like DMARC and use of scanning services significantly improves your risk profile and insurability.
The foundation: external attack surface management
Underwriters start by evaluating what is visible and exploitable from the internet. A poorly managed external footprint is a leading indicator of higher risk. They look for proof that you continuously identify and remediate vulnerabilities in internet-facing assets. Services like CISA’s no-cost Cyber Hygiene services, which include vulnerability scanning and web application scanning, provide a measurable way to reduce exposure. Enrolling in such programs demonstrates a commitment to closing basic gaps that adversaries exploit first.
A critical control: email authentication with DMARC
Email-based threats, especially phishing and business email compromise, are a primary cause of claims. DMARC is a mechanism that allows domain owners to publish a policy in DNS specifying how receivers should handle emails that fail SPF or DKIM authentication checks for their domain.
A DMARC policy does two key things insurers value: it protects your brand from being spoofed in phishing attacks, and it provides you with feedback reports. These reports allow you to monitor who is sending email using your domain and verify your authentication deployment. The presence of a DMARC record with a policy of quarantine or reject is a strong, verifiable signal that you are actively defending against a major threat vector.
Beyond checkboxes: evidence of a security program
Insurers seek evidence of an operational security program, not just a list of purchased tools.
Frequently asked questions
Why is DMARC so important to insurers?
DMARC directly addresses exact-domain spoofing, a common technique in phishing and fraud. By enforcing DMARC, you reduce the likelihood of a successful phishing campaign that impersonates your organization, which in turn reduces the risk of a business email compromise claim. It's a concrete, externally verifiable control.
What if we have cyber insurance but lack some of these controls?
You may still be covered for a claim, but you are likely paying a higher premium and assuming more risk.
Are there free resources to help with these assessments?
Yes. As mentioned, CISA offers no-cost Cyber Hygiene services including vulnerability and web application scanning for U.S.-based critical infrastructure organizations and government entities. These services provide the kind of external scanning data that underwriters review.
Does implementing DMARC risk blocking legitimate email?
If deployed carefully, the risk is minimal. DMARC relies on existing SPF and DKIM authentication systems. The key is to start with a monitoring-only policy (p=none) to gather reports and identify legitimate email sources sending on your behalf.
Is cyber insurance a substitute for security controls?
No. Cyber insurance is a risk transfer mechanism for residual risk, not a replacement for a security program. Insurers expect you to implement reasonable controls to prevent a loss in the first place. A strong security posture makes you insurable and keeps premiums manageable.
Where to start
Sources
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_Researched with AI assistance from a live passive security scan run by NEL (scan eph_mt8blbv9_23rp), which was not retained; citing 2 external sources; 10 factual claims were extracted and checked against their sources (0 of 10 verified); each verification step was independently recorded and signed by Vitna, which attests that the check ran and what its verdict was — not that the underlying claim is true (records 73770cf2-0b56-4787-92f6-c0ad0e828b81, f0cf73c5-792b-4226-944e-3143be2a927b, b6890fee-4b80-4f57-acb8-9519098ba4a7, +46 more, verify at https://vitna.costrinity.xyz/api/evidence/verify); reviewed and approved by admin:nelnationale before publishing; published by NEL Professionals with no individual byline._
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