Cyber insurance claim denials have become a lot more common in recent years, and it's usually not because of some clause buried in fine print. It's because the application for that policy was, in effect, a security self-assessment, and the business didn't actually have the controls it claimed to have.
The application is a promise, and insurers check
When you apply for cyber coverage, you're asked direct questions: Do you have MFA on all accounts? Do you have endpoint detection and response deployed? Do you maintain offline backups? Do you have a written incident response plan? Answering "yes" to questions that are actually "sort of" or "on some systems" isn't just risky, it can void the policy entirely once an insurer investigates a claim and finds the gap.
The baseline controls insurers now expect
- MFA everywhere, including admin accounts and remote access, not just customer-facing logins.
- Endpoint detection and response, not legacy antivirus that only catches known threats.
- Offline, immutable backups that are actually tested, not just scheduled.
- A documented patch management cadence, showing that known vulnerabilities get addressed on a regular schedule.
- A written incident response plan, not just an informal understanding of "who we'd call."
- Regular employee security training, with some evidence it actually happens, not just a policy document stating that it should.
Cyber insurance is a safety net for the risks you’ve already managed. It was never designed to replace managing them in the first place.
What happens when you file a claim without these
An insurer facing a significant payout has every financial incentive to investigate thoroughly. If the post-incident forensics show MFA wasn't actually enforced on the compromised account, despite the application claiming it was, or backups existed but were never tested and failed during recovery, that gap can be used to deny the claim or dramatically reduce the payout. This isn't an edge case anymore. It's becoming a standard part of how claims get reviewed.
Insurance is a safety net, not a security program
The businesses that get the most value out of their cyber policy are the ones that built real controls first and bought insurance as a backstop, not a substitute. Insurance helps cover the financial shock of an incident. It was never going to prevent one, and increasingly, it won't even pay out for one if the basics weren't actually in place.
Before your next renewal, it's worth having someone independently verify that what's written on your application actually matches what's running in your environment. It's a far better time to find that gap than during a claim.