Preparing for Cyber Insurance Renewal: 7 Technical Controls UK Insurers Now Expect from SMEs
For many SMEs, cyber insurance used to feel like a fairly straightforward annual exercise. You filled in a proposal form, confirmed a few broad security measures and moved on. That is no longer the case.
Cyber attacks have become more frequent, more costly and more disruptive, and insurers have responded by tightening expectations. In 2026, cyber insurance renewal is no longer just about buying cover. It is about proving that your business has taken sensible, practical steps to reduce risk.
For UK SMEs, that creates a clear challenge. Insurers are asking more detailed questions, technical controls are under closer scrutiny and businesses that cannot demonstrate a reasonable security baseline may face higher premiums, reduced cover or tougher renewal terms.
The good news is that the controls insurers are focusing on are not exotic. In most cases, they reflect a set of security fundamentals that every business should already be prioritising.
Here are seven technical controls that UK insurers increasingly expect SMEs to have in place before renewal.
1. Multi-Factor Authentication on Critical Systems
One of the clearest signals in today’s insurance market is that multi-factor authentication (MFA) is no longer optional.
Insurers know that compromised passwords remain one of the most common routes into business systems. If an attacker can gain access to Microsoft 365, remote access tools, cloud platforms or privileged administrator accounts using only a password, the risk profile rises sharply.
For that reason, insurers increasingly expect MFA to be enabled on:
* email platforms such as Microsoft 365
* VPNs and remote access services
* cloud admin portals
* privileged or administrator accounts
* any externally accessible critical systems
For SMEs, this is often one of the fastest and most effective improvements available. It does not eliminate risk, but it makes opportunistic compromise far harder.
If MFA is only partially deployed, that may not be enough. Insurers are increasingly looking for broad, consistent implementation rather than isolated use.
2. Endpoint Protection and Managed Detection
Traditional antivirus alone is no longer seen as a sufficient control.
Insurers are increasingly interested in whether businesses use modern endpoint protection, such as endpoint detection and response (EDR), extended detection and response (XDR) or a managed endpoint security service. The reason is simple: many attacks now involve ransomware, credential theft, malicious scripts and hands-on-keyboard activity that older tools may not catch effectively.
For SMEs, the key question is not whether every security product is cutting-edge. It is whether laptops, desktops and servers are being monitored and protected in a way that reflects modern threats.
Insurers may look for evidence that:
* endpoint protection is centrally managed
* devices receive regular updates
* alerts are reviewed
* suspicious behaviour can be detected and investigated
* protection extends to remote and hybrid workers
This matters especially in businesses where staff work from home, travel regularly or access cloud systems outside the traditional office perimeter.
3. Reliable, Tested Backups
Backups are one of the most important controls in both security and resilience, particularly in the context of ransomware.
From an insurer’s perspective, backups can materially affect the likely cost of a claim. If a business can restore systems and data quickly, disruption may be reduced and recovery costs may be lower. If backups are incomplete, untested or accessible to attackers, the exposure increases significantly.
Insurers increasingly expect SMEs to show that backups are:
* performed regularly
* stored securely
* separated from live production systems
* protected against tampering or encryption
* tested through restoration exercises
A backup that exists only in theory is not much comfort during an incident.
This is where many organisations fall short. They may have a backup product in place, but no confidence in how quickly systems could be restored or whether the backed-up data is complete and usable. From an underwriting perspective, that uncertainty matters.
4. Patch Management and Vulnerability Hygiene
Unpatched systems remain a common source of compromise, and insurers know it.
Many successful attacks do not rely on highly sophisticated techniques. They exploit known weaknesses that organisations have simply failed to address. As a result, patching and vulnerability management are increasingly central to renewal discussions.
For SMEs, this means being able to demonstrate a practical process for:
* applying security updates to operating systems
* patching internet-facing systems promptly
* updating firewalls, routers and network equipment
* maintaining third-party software
* identifying unsupported or end-of-life systems
Insurers are not expecting every SME to run a large security operations programme. They are expecting signs of discipline.
If critical vulnerabilities remain open for long periods, especially on exposed services, that can affect how underwriters view the risk. Equally, if legacy systems are still in use, businesses should be prepared to explain what compensating controls are in place.
5. Secure Email Protection and Anti-Phishing Controls
Email continues to be one of the most common entry points for cyber incidents, whether through phishing, credential theft, malware delivery or business email compromise.
Because of that, insurers increasingly pay close attention to what controls are in place around email security.
This may include:
* spam and malware filtering
* anti-phishing protection
* MFA on email accounts
* domain protection measures such as SPF, DKIM and DMARC
* user warning banners for suspicious or external messages
For SMEs, email is often the operational centre of the business. It touches finance, customer service, internal approvals and password resets. If email is compromised, the damage can spread quickly.
Insurers understand this, which is why a weak email security posture can raise concerns even when other controls appear stronger.
6. Access Control and Least-Privilege Management
Another area that insurers increasingly examine is how access is granted, reviewed and controlled.
In many SMEs, access permissions grow informally over time. Staff change roles, suppliers are onboarded, admin rights are granted for convenience and old accounts remain active longer than they should. From a security standpoint, this creates unnecessary exposure.
Insurers now often expect to see stronger access control discipline, including:
* unique user accounts
* limited administrator privileges
* prompt removal of leavers’ access
* periodic review of permissions
* tighter control over shared accounts
* restrictions on privileged access to key systems
The principle here is straightforward: people should have access to what they need, and no more.
This helps reduce both accidental risk and the potential impact of compromised credentials. It also gives insurers more confidence that one stolen login is less likely to become a business-wide incident.
7. Incident Response and Security Monitoring
Cyber insurance is not only about preventing incidents. It is also about how effectively a business can respond when something goes wrong.
That is why insurers increasingly ask about incident response planning, monitoring and escalation arrangements. They want to know whether the business is likely to identify suspicious activity quickly and whether there is a defined path for action.
For SMEs, this does not necessarily mean building a 24/7 in-house security team. It does mean having:
* a documented response plan
* named responsibilities
* clear escalation routes
* access to technical support during an incident
* logging or monitoring for key systems
* confidence in who will coordinate recovery
If a business cannot explain who will act, how systems will be assessed or how containment decisions will be made, insurers may see that as a weakness.
Preparedness counts. Even a concise, well-structured plan is far better than relying on improvisation under pressure.
