Endpoint detection and response that satisfies a cyber insurer's requirements

There’s no single EDR product that automatically satisfies every cyber insurer. Requirements vary by carrier and policy; applications may ask which product you use, whether it’s EDR or MDR, how it’s monitored, and whether it covers all endpoints. Confirm the exact wording with your broker or underwriter before buying. (beazley.com)

A practical insurer-ready baseline:

• Deploy a genuine EDR product—not antivirus alone—across all in-scope workstations and servers.
• Ensure alerts are actively monitored. If you don’t have a security team providing continuous coverage, consider managed EDR/MDR with 24/7 monitoring and documented response. Some underwriting guidance specifically emphasizes broad deployment and round-the-clock monitoring. (dol.gov)
• Keep a current inventory and deployment report showing coverage, exceptions, and any devices that can’t run the agent.
• Retain evidence of monitoring and response: service agreement, alert/escalation process, incident records, and regular coverage reports.
• Make sure the people responsible can isolate a device and escalate an incident under a documented process.

Before selecting a provider, ask your broker to confirm in writing whether the proposed product and monitoring model meet the carrier’s requirement. For example: “Does the carrier accept this EDR/MDR product, and does it require 24/7 third-party monitoring or coverage of specific device types?” A carrier application may distinguish EDR from MDR and ask how the service is managed, so don’t assume that installing an agent alone is enough. (beazley.com)

If you share the insurer’s exact EDR question, plus your organization’s size and whether you have an internal SOC, I can help translate it into a specific checklist.

Short answer: To satisfy most carriers, you need a named, behavior-based EDR product on every endpoint and server, with someone monitoring its alerts around the clock and reports that prove coverage. Legacy antivirus usually fails. Exact thresholds vary by carrier and policy form, so check the application you'll actually sign.

What underwriters typically check

• Product type: Insurers distinguish EDR from traditional antivirus, and legacy AV doesn't satisfy the question. Underwriters distinguish EDR from traditional antivirus: legacy AV does not satisfy this requirement. Commonly accepted tools include CrowdStrike, SentinelOne, and Microsoft Defender for Endpoint. Some carriers also accept "EDR-class" products without a named vendor, but NGAV is only occasionally accepted, and that window is closing for larger accounts.
• Coverage scope: Coverage must extend to servers, not just workstations. Server coverage is the most-skipped piece; underwriters increasingly ask for the deployment report. Coverage percentage matters too. Some sources say EDR on 95 percent of endpoints with documented exceptions for the remaining 5 percent is typically acceptable. Treat that as a common benchmark, not a published rule. Any gap should be documented as an exception.
• Monitoring and response: Insurers want to see that alerts get reviewed and acted on. One source says the EDR signal must reach a SOC analyst within minutes, not 'next business day.' For most mid-sized businesses, that means either an internal 24/7 SOC (rare) or a managed detection and response (MDR) service contracted with response SLA. MDR is also often treated as a better posture for premium purposes. MDR is increasingly differentiated as a higher-discount posture than self-managed EDR.
• Response workflow: Be ready to show you can isolate a device, stop a process, remediate, and reimage if necessary. One checklist lists a response workflow: isolate device, kill process, remediate, reimage if needed as an expectation.

Evidence to keep on file

• An EDR console report showing device count and percentage of endpoints covered, with agent versions current.
• Documented exceptions for any unmanaged devices, with a remediation date.
• Your monitoring arrangement, such as an MDR contract and its response times.
• Records of a tested incident response plan, since EDR alerts only help if someone acts on them.

Common reasons applications fail

• Servers and admin workstations left out of the deployment.
• An "EDR" that is really antivirus.
• Alerts that go unreviewed outside business hours.
• Answers that can't be backed by a dated report. Carriers increasingly verify claims, so overstating coverage can jeopardize a later claim.

Practical steps

1. Pull an agent-health report from your EDR console and compare it against your full asset inventory, including servers and cloud workloads.
2. Close gaps and document any remaining exceptions.
3. Decide how alerts will be monitored after hours. If you can't staff it, price an MDR service.
4. Ask your broker which EDR products the target carriers accept, since some publish approved lists.

To satisfy modern cyber insurance requirements in 2026, it is no longer enough to simply "have" an EDR tool installed. Underwriters now demand evidence of active, continuous management and response.

If you are looking to secure a policy or pass a renewal audit, your EDR solution and its deployment must meet these four core criteria:

1. Comprehensive Coverage

Insurers will check if your EDR is deployed across your entire environment, not just user workstations.

• What is required: The EDR agent must be active on all in-scope endpoints, including servers, hypervisors, domain controllers, Remote Desktop Services (RDS) hosts, and any BYOD or contractor devices that access business data.
• The "Gap" to avoid: Partial deployment (e.g., leaving servers on legacy antivirus while workstations have EDR) is a primary reason for claim denials.

2. Active Response Capabilities

Insurers look for tools that can do more than just generate alerts.

• What is required: The solution must be capable of active response, meaning it can automatically isolate a device from the network, kill malicious processes, and quarantine suspicious files without human intervention.
• Note: Simple, passive "alert-only" modes are generally insufficient for today's underwriting standards.

3. 24/7 Monitoring (MDR)

A tool that generates alerts that no one reviews after 6:00 PM is considered a failing control.

• What is required: You must demonstrate 24/7 monitoring. For most organizations, this necessitates a Managed Detection and Response (MDR) partner or an in-house Security Operations Center (SOC) capable of meeting specific service-level agreements (SLAs)—typically a 15-minute acknowledgement and 60-minute containment time.

4. Verifiable Proof (Evidence Binder)

"We have that" is no longer a sufficient answer on an insurance application. You must be prepared to provide an evidence binder that includes:

• Coverage Reports: Proof that the EDR agent is installed and "seen" on all devices.
• Health Reports: Evidence that agents are active, up-to-date, and have checked in recently (e.g., not offline for weeks).
• Operational Documentation: A response runbook (what you do when an alert hits), your MDR provider's SLA, and an exception register for any devices that cannot run the agent.

Summary Checklist for Success

Important Recommendation: If you are using a solution like Microsoft Defender, ensure it is configured as Defender for Endpoint Plan 2. Free versions of antivirus are typically rejected as insufficient by modern underwriters. Always coordinate with your broker to ensure your specific policy’s definitions of "EDR" align with your technical stack.

There isn’t one universal EDR product or checklist that satisfies every cyber insurer. The carrier’s application and underwriting conditions control, so confirm its exact wording with your broker before buying or changing tools.

As a practical baseline, choose an EDR solution that:

• Covers all in-scope endpoints—workstations, laptops, and servers—and lets you identify and explain any exclusions or gaps.
• Provides continuous behavioral monitoring and detection, not just traditional signature-based antivirus.
• Can contain or respond to threats, such as isolating a compromised device, and gives administrators centralized visibility.
• Has alerts that are actively monitored and acted on. If your team can’t cover alerts around the clock, ask about a managed detection and response (MDR) service; EDR software and staffed monitoring are distinct capabilities. ⁴⁵¹⁵
• Produces evidence you can give the insurer, such as an endpoint coverage report, monitoring arrangements, and records of alert triage and response. ⁴⁵

Before applying or renewing, map the insurer’s questions to your actual deployment: product and service names, devices covered versus total devices, monitoring hours, response responsibilities, and documented exceptions. Don’t attest to full coverage or monitoring unless you can verify it. Insurers may also ask about MFA, backups, patching, and incident response, so EDR alone may not meet the policy’s requirements. ⁴⁵¹⁵

If you share the insurer or application wording, plus your endpoint count and whether you have in-house or managed monitoring, I can help turn it into a specific checklist.