Cybersecurity Insurance: How Strong Security Reduces Your Premiums

Why has the cyber insurance market changed?

Cyber insurance used to mean a short questionnaire and a quick policy. The volume and cost of ransomware claims since 2020 ended that. Insurers tightened underwriting, some left the market, and the survivors moved to risk-based pricing that reflects your actual security posture.

For UK SMEs the consequence is direct: the controls you have — or don't — now decide whether you can buy cover and at what price. According to the British Insurance Brokers' Association (BIBA), organisations with mature cyber security programmes pay materially less for equivalent coverage than those without. The single biggest lever on your premium is no longer your turnover; it is your managed cybersecurity posture and your ability to prove it.

The UK government's own Cyber Security Breaches Survey 2025 tracks how many businesses now carry cyber cover and which controls they hold — and the picture is one of fast-rising expectation across the SME market.

What do cyber insurance underwriters look for?

Modern questionnaires are detailed and technically specific. Underwriters score five control areas heavily, and a weak answer in any one can move a premium up or trigger an exclusion. Below is what they ask about and how each control changes your risk profile.

Why is multi-factor authentication a near-universal requirement?

MFA on email, VPN, remote desktop access and cloud platforms is now a baseline underwriting condition. Businesses without MFA on email are routinely refused cover or offered it only with a substantial exclusion. Many underwriters demand MFA on every administrative account as a minimum policy condition.

The NCSC treats MFA as one of the highest-value, lowest-cost controls a business can deploy — its multi-factor authentication guidance explains why. Getting it right across Microsoft 365 is straightforward with the correct MFA setup for Microsoft 365, and it is the first thing we configure for a new client.

Why do insurers care so much about backups?

Insurers want backups that are immutable, stored offsite, and tested for recoverability — not just "taken". A business whose only backup is a NAS on the same network as production, directly reachable by ransomware, is a far worse risk than one with daily immutable cloud backups and quarterly restore tests.

Tested recovery is what turns a catastrophic claim into a manageable one. Building that capability is the core of business continuity and backup planning, and it is the control underwriters most often find missing when they investigate a declined claim.

Is legacy antivirus still enough for cyber cover?

No. Most underwriters no longer accept legacy signature antivirus as adequate. They want EDR that provides behavioural analysis and automated threat response, and some ask specifically which product and vendor you run. EDR is now the expected standard, not a premium extra.

Modern endpoint detection and response gives both you and your insurer evidence that threats are detected and contained at the device, not discovered weeks later in an incident report.

How do patch management and email security affect your premium?

Underwriters ask how fast you apply critical patches, especially to internet-facing systems, and what email security you run. A documented patch policy with defined remediation timescales is a positive signal; unpatched, unsupported software is a serious negative. On email, DMARC set to reject plus an active gateway marks you as lower phishing risk.

Email is the primary attack vector for ransomware, and insurers have learned this from claims data. Strong business email security — enforced DMARC, gateway filtering and anti-phishing — directly lowers the risk underwriters are pricing.

Does the cost of security actually pay back against premiums?

For most SMEs the maths is simple. A managed programme covering EDR, email security, backup monitoring and certification typically costs between £500 and £2,000 per month (typical UK 2026 range) depending on size — while the premium gap between a strong and weak posture can match or exceed that, and a real claim runs to tens or hundreds of thousands once recovery, business interruption, legal costs and fines are counted.

Insurers are not being unreasonable; they are pricing risk accurately. The businesses paying the most for cyber insurance are frequently those where a claim is most likely. Investing in controls compresses both your premium and your probability of ever needing to claim.

A recognised certification is one of the cleanest signals you can present. Cyber Essentials, the UK government-backed scheme, demonstrates that the five technical controls underwriters ask about are in place — AMVIA holds Cyber Essentials Plus, the independently audited tier.

How does an incident response plan reduce claim costs?

A documented, tested incident response plan is a factor underwriters weigh directly. The faster you can detect, contain and respond, the lower the cost of any claim — so a credible plan lowers your loss expectancy and can lower your premium. Some insurers require a retainer or mandate their preferred response firm, which you should check when comparing policies.

This is where detection speed matters most. AMVIA pairs a tested incident response plan with managed detection and response — Microsoft Defender for Endpoint monitored by our in-house 24/7 SOC — so an incident is caught and contained early rather than discovered after the damage is done. We can also produce documentation of your controls that supports the insurance application itself.

Should you review your cyber insurance policy every year?

Yes. Review cyber cover annually. The threat landscape shifts, your business changes, and underwriting requirements evolve. A policy bought three years ago may carry exclusions that now matter more, or no longer match your coverage needs. Working with a specialist cyber insurance broker alongside your managed security provider gives the most complete picture.

The combination matters: the broker prices and places the risk, while your security partner makes the underlying posture genuinely strong and evidences it. One provider, security-first, Microsoft-certified, removes the gaps that otherwise appear between IT, the broker and the underwriter.