Do professional firms need Cyber Essentials?

Most legal, accountancy and professional services firms should hold Cyber Essentials. It's the UK Government's recommended minimum standard of cyber security ^{1Source 1Cyber Essentials — National Cyber Security Centre (NCSC), web page.www.ncsc.gov.uk/cyberessentials/overviewAccessed 2 November 2026See in Sources}, it's expected on many public sector contracts that handle personal data ^{2Source 2PPN 014: Cyber Essentials scheme — Cabinet Office, 2025.www.gov.uk/government/publications/ppn-014-cyber-essentials-scheme/ppn-014-cyber-essentials-scheme-htmlAccessed 2 November 2026See in Sources}, and clients and insurers increasingly ask for it. For a well-managed firm it's a modest step: the certification fee starts at £320 +VAT for an organisation of up to nine people ^{3Source 3Cyber Essentials (fees and certification process) — IASME Consortium, web page.iasme.co.uk/cyber-essentials/Accessed 2 November 2026See in Sources}.

What is Cyber Essentials?

A certification scheme, backed by the National Cyber Security Centre (NCSC), built around five technical controls: firewalls, secure configuration, security update management, user access control and malware protection ^{1Source 1Cyber Essentials — National Cyber Security Centre (NCSC), web page.www.ncsc.gov.uk/cyberessentials/overviewAccessed 2 November 2026See in Sources}. They are the controls that stop most common, opportunistic attacks.

Fees and validity are those published by IASME, the scheme's delivery partner ^{3Source 3Cyber Essentials (fees and certification process) — IASME Consortium, web page.iasme.co.uk/cyber-essentials/Accessed 2 November 2026See in Sources}.

Why does it matter for a law or accountancy firm?

• You are a target. Firms hold confidential client data and move client money. 43% of UK businesses reported a breach or attack in the last year, 33% in Northern Ireland, and phishing was by far the most common kind ^{4Source 4Cyber security breaches survey 2025/2026 — Department for Science, Innovation and Technology (official statistics), 2026.www.gov.uk/government/statistics/cyber-security-breaches-survey-20252026/cyber-security-breaches-survey-20252026Accessed 2 November 2026See in Sources}.
• Public sector work may require it. Central government departments, their agencies and NHS bodies must make sure suppliers meet set technical requirements on contracts that handle personal information. Cyber Essentials is the quickest way to show it, renewed every year of the contract ^{2Source 2PPN 014: Cyber Essentials scheme — Cabinet Office, 2025.www.gov.uk/government/publications/ppn-014-cyber-essentials-scheme/ppn-014-cyber-essentials-scheme-htmlAccessed 2 November 2026See in Sources}.
• Insurers notice. A UK organisation with turnover under £20m that certifies its whole organisation is entitled to cyber liability insurance with a £25,000 limit ^{5Source 5Cyber Liability Insurance — IASME Consortium, web page.iasme.co.uk/cyber-essentials/cyber-liability-insurance/Accessed 2 November 2026See in Sources}. The NCSC reports insurer data showing certified organisations are 92% less likely to make a claim ^{6Source 6NCSC Annual Review 2025: empowering organisations with NCSC tools and services — National Cyber Security Centre, 2025.www.ncsc.gov.uk/collection/ncsc-annual-review-2025/chapter-02-resilience-at-scale/empowering-organisations-ncsc-tools-servicesAccessed 2 November 2026See in Sources}.
• Clients ask. It gives partners a clear, defensible standard to show clients, without anyone in the firm needing to become a security expert.

How hard is it for a well-managed firm?

Not very, if the basics are already in place. Devices patched and configured to a standard, two-step sign-in enforced, access reviewed when people join and leave, and malware protection running cover most of what the assessment asks.

The common stumbling block is old software. Any unsupported software within the scope of the assessment is an automatic fail ^{7Source 7Cyber Essentials: frequently asked questions — IASME Consortium, web page.iasme.co.uk/cyber-essentials/frequently-asked-questions/Accessed 2 November 2026See in Sources}, so older PCs and applications need updating or replacing first. It's also why many firms aren't ready yet: only 24% of UK businesses reported having controls in all five areas ^{4Source 4Cyber security breaches survey 2025/2026 — Department for Science, Innovation and Technology (official statistics), 2026.www.gov.uk/government/statistics/cyber-security-breaches-survey-20252026/cyber-security-breaches-survey-20252026Accessed 2 November 2026See in Sources}.

We prepare legal and accountancy firms properly, close any gaps against the five controls and support them through assessment, as part of Cybersecurity. The certificate then reflects how the firm is actually run, and stays true between renewals.