Penetration Testing for Law Firms in the UK: What You Need to Know

Penetration testing for law firms in the UK: what you need to know

Law firms occupy a uniquely high-risk position in the cybersecurity landscape. They hold large volumes of sensitive client data — financial records, personal details, privileged communications, litigation strategies — and they are increasingly targeted by attackers who know this.

Why law firms are targeted

The data law firms hold is valuable. Ransomware attacks on UK law firms have increased significantly in recent years. Business email compromise — where attackers impersonate a fee earner to redirect client payments — is another common threat.

The regulatory context

The SRA requires law firms to have appropriate systems in place to protect client data. The ICO has fined law firms for data breaches resulting from inadequate security.

Common vulnerabilities

Weak passwords on admin accounts. Exposed client portals with insufficient authentication. Missing email authentication records. Outdated software. Insufficient access controls.

How much does it cost

Traditional penetration testing costs £5,000 to £15,000. For smaller firms, Yrzo AI offers automated penetration testing at £149 per scan — 75+ security checks with a plain-English report that documents due diligence for regulatory purposes.