# UK SMB Cybersecurity Market

> **Scope:** UK small and medium-sized business (SMB / SME) cybersecurity market size, breach prevalence, spending patterns and insurance uptake.  
> **Sources:** 10 distinct web sources; data cutoff June 2026.

## Market Size

- **UK cybersecurity market** estimated at **USD 17.36 billion in 2025**, projected to reach **USD 28.49 billion by 2030** at a CAGR of **10.42%** (GII / Mordor Intelligence, 2025).
- Direct **UK cybersecurity sector revenue** reached **£13.234 billion in 2024**, up **12%** year-on-year (UK Government Cyber Security Sectoral Analysis 2025, cited in AI Summit reporting).
- Separate market-cap reporting place the UK sector at **USD 19.9 billion / c. £15.7 billion** in annual revenue (Security Done / JoAI, 2025).

## Breach Prevalence & Impact

- **43% of UK businesses** and **28% of charities** reported a cyber breach or attack in the previous 12 months (DSIT / Home Office, Cyber Security Breaches Survey 2025/2026).
- That translates to roughly **612,000 UK businesses** and **57,000 charities** breached, with **5.19 million cyber crimes** committed against UK businesses in the year (DSIT 2025/2026; repeated by Cloudswitched, Learning People).
- **Medium businesses: 67–70%** breach rate; **large businesses: 74%** (DSIT 2025; BlueFort LinkedIn summary). The headline 43% masks much higher exposure for scale-ups and enterprises that SMBs supply into.
- **Phishing remains the most disruptive** attack vector (DSIT 2025/2026; Cyber Magazine, Learning People).

## Cost of a Breach

- Average cost for a UK SME breach in 2025: **£6,400** — up **52%** from £4,200 in 2024 (AMVIA UK SME Cybersecurity Report 2026).
- For micro and small businesses, the most serious breach cost an average of **nearly £8,000** to recover; this excludes long-term operational damage, customer-trust loss and business continuity impacts (BT research via ByteStart).
- The DSIT survey notes a **doubling of breaches that hit revenue** (Cloudswitched analysis of 2025/2026 data).

## Spending & Controls

- Cybersecurity remains a **reactive spend** for many SMBs. DSIT interviewees consistently described spending “when they need to, to survive generally,” and that “it’s tempting to cut corners when you see how much cloud systems, antivirus, firewalls are costing” (Professional Security Magazine, DSIT 2025).
- **80% of small businesses** state they plan to increase cybersecurity spending because of rising threats (LinkedIn/cybersecurity analyst reporting, 2025).
- Despite the rising threat, only **5% of UK businesses** formally hold a **Cyber Essentials certificate**, up marginally from 3% (Cloudswitched analysis of DSIT 2025/2026; Five Eyes warning June 2026).

## Cyber Insurance

- **Small business cyber insurance uptake jumped** from **49% in 2024 to 62% in 2025** (DSIT 2025).
- Reasons SMEs still go uninsured: lack of awareness, perceived low necessity, cost/financial constraints (Binding Hook, 2025; OECD 2026). UK cyber insurance premium market projected to grow from USD 1.56 m in 2025 to USD 1.77 m in 2026 (Mordor Intelligence).

## Strategic Takeaways

1. **Demand is structural, not cyclical.** UK cybersecurity spend is growing ~10% CAGR, but most of that growth is in mid-market/enterprise and supply-chain-driven adoption.
2. **SMBs are under-invested.** 612,000 breached businesses vs. only 5% Cyber Essentials-certified highlights a massive protection gap.
3. **Cost-of-breach data is the best sales lever.** Both £6,400 AMVIA average and ~£8,000 micro/small recovery figure give SMBs a concrete ROI for proactive controls.
4. **Insurance is becoming a channel.** 62% small-business adoption means brokers and insurers are influencing security-purchasing decisions—potential partnership route.

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## Sources

1. GOV.UK — Cyber Security Breaches Survey 2025/2026 (DSIT / Home Office, 30 Apr 2026). https://www.gov.uk/government/statistics/cyber-security-breaches-survey-20252026
2. AMVIA — UK SME Cybersecurity Report 2026 (average breach cost £6,400). https://www.amvia.co.uk/research/uk-sme-cybersecurity-2026
3. Cloudswitched — UK Cyber Security Breaches Survey 2025/2026 SME analysis (612,000 businesses; 5.19M crimes; Cyber Essentials 5%). https://www.cloudswitched.com/news/uk-cyber-security-breaches-survey-2025-2026-sme-wake-up-call
4. GII / Mordor Intelligence — UK Cybersecurity Market size USD 17.36B (2025) → USD 28.49B (2030), CAGR 10.42%. https://www.gii.co.jp/report/moi1644896-uk-cybersecurity-market-share-analysis-industry.html
5. The AI Summit London — UK cybersecurity sector revenue £13.234B in 2024, +12% growth. https://london.theaisummit.com/what-the-recent-cyberattacks-on-british-retailers-like-marks-spencer-can-teach-us-about-cybersecurity/
6. Learning People — “£14.7bn UK Cybersecurity Growth” (43% breach rate; charity figures). https://www.learningpeople.com/uk/career-insights/blog/147bn-uk-cybersecurity-growth-shows-demand-is-outrunning-defence/
7. ByteStart / BT — micro/small business recovery cost ~£8,000. https://www.bytestart.co.uk/news-insights/bt-warns-small-businesses-theyre-in-the-firing-line-for-cyber-attacks/
8. Cloudswitched — Five Eyes AI cyber warning, only 5% Cyber Essentials certified (22 Jun 2026). https://www.cloudswitched.com/news/five-eyes-ai-cyber-warning-june-2026-uk-sme-cyber-essentials-action-plan
9. Binding Hook — Why SMEs don’t buy cyber insurance (cost, awareness). https://bindinghook.com/why-dont-small-and-medium-uk-enterprises-buy-cyber-insurance/
10. Professional Security Magazine — DSIT quotes on SME reactive spending. https://professionalsecurity.co.uk/products/cyber/breaches-survey/