Security management

Navigating Cyber Insurance: Essential Security Controls for CISO and IT Managers

Cyber insurance has become a necessity, but securing coverage and favorable rates now hinges on implementing robust security controls. This guide details the non-negotiable requirements from insurers and offers practical steps to meet them, ensuring both compliance and improved security posture.

19 October 2026 · 8 min read

Cyber insurance is no longer a 'nice-to-have'—it's a critical component of risk management. However, obtaining and renewing policies has become significantly more challenging. Insurers have matured, shifting from simply covering losses to demanding proactive risk reduction. They now scrutinize an organization's security posture with detailed questionnaires, focusing on specific, proven security controls.

For CISOs, IT managers, and MSPs, the challenge is twofold: accurately answering these questionnaires and, more importantly, implementing the controls effectively to genuinely reduce risk. This guide will walk you through the key security controls insurers prioritize and how to approach them strategically.

Why Are Cyber Insurers So Demanding Now?

The cyber insurance market has undergone a significant hardening. A surge in ransomware attacks, business email compromise (BEC) schemes, and data breaches led to massive payouts, forcing insurers to re-evaluate their risk models. They learned that many insured organizations lacked fundamental defenses, making them high-risk. To mitigate their own exposure, insurers now mandate specific controls that are proven to reduce the likelihood and impact of common attack vectors.

This isn't just about ticking boxes. It's about establishing a baseline of cyber hygiene that insurers consider essential for any organization seeking coverage. Failing to meet these requirements can result in denied coverage, higher premiums, or policies with extensive exclusions.

What Core Security Controls Do Insurers Mandate?

While exact requirements vary by insurer and organization size, several controls consistently appear across questionnaires. These are the non-negotiables:

Multi-Factor Authentication (MFA) Everywhere

MFA is universally recognized as one of the most effective defenses against credential theft and unauthorized access. Insurers now expect MFA for virtually all critical access points.

  • Remote access (VPNs, RDP, VDI)
  • Email accounts (cloud and on-premises)
  • Privileged accounts (administrators, service accounts, IT staff)
  • Cloud applications and services (SaaS, IaaS management consoles)
  • Endpoints (for login to devices, if applicable)
  • Internal systems with sensitive data

When answering questionnaires, be precise. 'Some MFA' is rarely sufficient. You need to demonstrate broad, consistent deployment. If there are exceptions, be prepared to justify them with compensating controls.

Network Segmentation and Micro-segmentation

Segmentation limits the lateral movement of attackers once they breach your perimeter. If a single endpoint or server is compromised, segmentation prevents that compromise from immediately spreading across your entire network.

  • Network Segmentation: Dividing your network into logical zones (e.g., corporate, guest, production, development, IoT) with firewalls or ACLs controlling traffic between them.
  • Micro-segmentation: Applying granular security policies to individual workloads, applications, or even user groups, regardless of their location. This creates a 'zero-trust' environment where communication is only allowed between explicitly authorized entities.

Insurers are increasingly asking about micro-segmentation, recognizing its power to contain breaches. Be ready to describe your segmentation strategy, how it's enforced, and how it protects critical assets.

Immutable Backups and Disaster Recovery

Ransomware attacks specifically target backups to prevent recovery. Immutable backups are designed so that once data is written, it cannot be altered or deleted for a specified period. This is crucial for ransomware recovery.

  • Offsite/Offline Copies: Maintaining at least one copy of critical data physically or logically separated from your primary network.
  • Immutable Storage: Using storage solutions that prevent modification or deletion of backup data.
  • Regular Testing: Demonstrating that your backups are viable and that your disaster recovery plan can restore operations within acceptable RTO/RPO targets.

Insurers want proof that you can recover without paying a ransom. Detail your backup frequency, retention policies, immutability features, and the last successful test of your recovery plan.

Advanced Email Security

Email remains the primary attack vector for phishing, BEC, and malware delivery. Basic spam filters are no longer enough. Insurers expect sophisticated defenses.

  • Anti-Phishing & Anti-Spoofing: Solutions that go beyond traditional signatures to detect advanced phishing attempts, executive impersonation, and vendor email compromise.
  • Behavioral Analysis: Identifying anomalous communication patterns, unusual payment requests, and conversation hijacking, even when SPF, DKIM and DMARC pass and there's no malicious payload.
  • DMARC Implementation: Properly configured DMARC records (with a 'reject' or 'quarantine' policy, where appropriate) to prevent email impersonation of your domain.
  • Employee Reporting: A simple, integrated mechanism for employees to report suspicious emails, feeding into a rapid response process.
  • Automated Remediation: The ability to automatically remove malicious emails from all affected inboxes across the organization.

Be prepared to describe your email security stack, how it detects threats like BEC, and your incident response process for reported suspicious emails.

Endpoint Detection and Response (EDR)

Traditional antivirus software provides baseline protection, but EDR goes further. It continuously monitors endpoints for suspicious activity, detects advanced threats, and provides capabilities for rapid investigation and response.

  • Real-time Monitoring: Continuous collection of data from endpoints.
  • Threat Detection: Advanced analytics and behavioral detection to identify malicious activities.
  • Automated Response: Capabilities to isolate compromised endpoints or terminate malicious processes.
  • Forensic Capabilities: Tools to investigate security incidents on endpoints.

Insurers want to know you can detect and contain threats on endpoints quickly. If you have an EDR solution, highlight its capabilities and how it integrates with your security operations.

Answering the Questionnaire Honestly and Effectively

The questionnaire is a legal document. Lying or misrepresenting your controls can lead to denied claims. However, 'no' isn't always the only answer. Here’s how to approach it:

  1. Assess Your Current State: Conduct a thorough internal audit against the common control requirements. Identify gaps before you even see the questionnaire.
  2. Be Specific, Not Vague: Instead of 'We have MFA,' state 'MFA is enforced for all remote access, privileged accounts, and cloud email via Microsoft Authenticator and YubiKeys.'
  3. Document Everything: Have policies, configuration screenshots, audit logs, and test results ready to back up your claims. Insurers may request evidence.
  4. Address Gaps Proactively: If you know you have a gap, don't ignore it. Start a project to address it. You can sometimes state 'Implementation in progress, expected completion by [date]' if you have a concrete plan.
  5. Highlight Compensating Controls: If you can't implement a specific control, explain what alternative measures you have in place that achieve a similar risk reduction.
  6. Engage Your Broker: A knowledgeable cyber insurance broker can help you interpret questions, understand insurer expectations, and present your security posture in the best light.
  7. Review Policy Exclusions: Even with robust controls, understand what your policy explicitly does and does not cover. No policy covers every scenario.

Beyond the Basics: What Else Enhances Your Position?

While the core controls are mandatory, demonstrating maturity in other areas can further improve your insurability and rates:

  • Security Awareness Training: Regular, engaging training for all employees, including phishing simulations.
  • Patch Management: A robust program for timely patching of operating systems, applications, and network devices.
  • Incident Response Plan: A documented, tested plan for responding to cyber incidents, including clear roles and responsibilities.
  • Privileged Access Management (PAM): Solutions to control, monitor, and audit privileged accounts.
  • Vulnerability Management: Regular vulnerability scanning and penetration testing programs.
  • Supply Chain Risk Management: Assessing and managing the cybersecurity risks posed by your vendors and third-party partners.
  • Threat Intelligence: Proactive monitoring of the dark web, deep web, and other sources for mentions of your organization, compromised credentials, or impending threats.

How Lion Group Helps

Lion Group provides comprehensive solutions to help organizations meet and exceed cyber insurance requirements, while genuinely enhancing their security posture. Our offerings address critical areas that insurers scrutinize. For example, our advanced email security solutions go beyond basic filters, using behavioral analysis to detect sophisticated BEC attacks and executive impersonation, even when SPF, DKIM and DMARC pass. For network segmentation, we partner with Zero Networks to deliver automated micro-segmentation capabilities. Our DMARC management platform simplifies the complex process of achieving DMARC enforcement. For proactive threat intelligence, ACID Technologies offers tailored multilingual keyword monitoring across the dark web, deep web, messaging platforms, paste and dump sites, and leak sites, providing validated and enriched alerts directly into your operational security workflows.

Conclusion

Cyber insurance is a partnership. Insurers expect you to do your part by implementing and maintaining robust security controls. By strategically addressing MFA, network segmentation, immutable backups, advanced email security, and EDR, you not only improve your chances of securing favorable insurance terms but, more importantly, you build a stronger, more resilient defense against the evolving threat landscape. Approach the questionnaire with honesty, documentation, and a commitment to continuous improvement.

AA

Arik Assayag

Founder & CEO, Lion Group

Frequently asked questions

What is the most critical security control for cyber insurance?

Multi-Factor Authentication (MFA) is almost universally considered the single most critical control by cyber insurers. Its widespread implementation for all remote access, privileged accounts, and cloud services is often a mandatory baseline requirement.

How does micro-segmentation help with cyber insurance?

Micro-segmentation significantly reduces an attacker's ability to move laterally within your network after an initial breach. By isolating workloads and applications, it contains the impact of a compromise, which insurers view as a strong defense against ransomware and data exfiltration.

Why are immutable backups so important for cyber insurance?

Immutable backups are crucial because they cannot be altered or deleted, even by ransomware. This guarantees that your organization can recover critical data and systems without paying a ransom, directly addressing one of the biggest concerns for cyber insurers.

What kind of email security do insurers expect beyond basic spam filters?

Insurers now expect advanced email security that includes anti-phishing, anti-spoofing, and behavioral analysis to detect sophisticated attacks like Business Email Compromise (BEC) and executive impersonation. Proper DMARC enforcement and automated remediation capabilities are also increasingly important.

Can I get cyber insurance if I have security gaps?

It's becoming increasingly difficult to secure comprehensive cyber insurance with significant security gaps. While some minor gaps might be acceptable with compensating controls or a clear plan for remediation, critical missing controls like MFA or immutable backups can lead to denied coverage, higher premiums, or restrictive policy exclusions.

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