Table of Contents
- Why Cybersecurity Practices Matter for Law Firms
- Practice 1: Follow Cyber Security Guidance for Solicitors
- Practice 2: Build a Law Firm Incident Response Plan
- Practice 3: Run Regular Cybersecurity Training for Law Firms
- Practice 4: Work Through a Law Firm Cyber Security Checklist
- Practice 5: Test and Review Your Cybersecurity Practices Every Quarter
- Conclusion
- Frequently Asked Questions
Last Updated: 18 October 2026
Why Cybersecurity Practices Matter for Law Firms
Cyber security is the set of technical and procedural controls a firm uses to protect client data, money and reputation from digital attack. For law firms, the stakes are unusually high because you hold privileged client information, large client account balances and details of transactions that criminals find valuable.
This guide from KeyInsite Consultancy sets out the five cybersecurity practices we would put in place first at any legal practice. Below, we explain exactly what each practice involves, what the regulators expect, and how to check your own firm against it.
The threat is not theoretical. The National Cyber Security Centre’s guidance for legal firms notes that the legal sector is a regular target for ransomware and business email compromise, precisely because client money moves through it. The Solicitors Regulation Authority’s guidance on cyber security treats inadequate protection as a conduct issue, not just an IT one.
Practice 1: Follow Cyber Security Guidance for Solicitors
The first practice is to adopt the official cyber security guidance for solicitors as your baseline, rather than assembling controls from scratch. The SRA expects firms to protect client confidentiality and to have arrangements in place that keep client money safe.
What the SRA and ICO Expect From Your Firm
The SRA’s position is that you must take reasonable steps to protect information and to prevent fraud against client accounts. That means documented policies, access controls, secure email, and a way to report and learn from incidents.
The Information Commissioner’s Office guidance on personal data breaches adds a hard deadline: a reportable personal data breach must be reported to the ICO within 72 hours of you becoming aware of it. Firms that cannot detect a breach quickly cannot meet that deadline.
A common mistake is treating the SRA and ICO requirements as paperwork. They are operational tests. If you cannot show what you did and when, you have not met them.
Assuming your IT provider handles compliance for you. It does not. The SRA holds the firm and its managers responsible, so you need your own evidence of controls, not just a supplier’s assurance.
Practice 2: Build a Law Firm Incident Response Plan
A law firm incident response plan is a written, tested procedure that tells your team exactly who does what in the first hours of a suspected cyber attack. Without one, decisions get made in a panic and the 72-hour ICO deadline slips.
The Six Elements Every Response Plan Needs
- A named incident lead and a deputy, with contact details kept offline
- A detection route so any staff member knows how to report a suspected breach
- Containment steps for isolating devices and disabling accounts
- A client communication script and a decision log
- Escalation contacts for your insurer, IT provider and the ICO
- A recovery sequence that restores systems in priority order
Test the plan with a tabletop exercise at least once a year. If your team has never rehearsed a ransomware scenario, the plan is a document, not a capability.
Practice 3: Run Regular Cybersecurity Training for Law Firms
Cybersecurity training for law firms is the practice of teaching every person in the practice, from partners to reception, to recognise phishing, payment fraud and unsafe data handling. Most successful attacks start with a convincing email, so trained staff are your cheapest and most effective control.
Run short sessions every quarter rather than one long annual briefing. Cover the specific scams that hit legal practices: fake client instructions to change bank details, spoofed partner emails, and invoices from a supplier with altered account numbers.
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Send your own test phishing email a few weeks after each session. The click rate tells you whether the training landed, and it gives you a record of ongoing awareness that supports your SRA position.
Practice 4: Work Through a Law Firm Cyber Security Checklist
A law firm cyber security checklist turns good intentions into a repeatable audit you can complete and date. Work through it at least twice a year and keep the completed copies.
| Area | Control to check | Frequency |
|---|---|---|
| Access | Multi-factor authentication on email and case systems | Every quarter |
| Backups | Restore test from an offline copy | Every quarter |
| Devices | Patching and encryption confirmed | Monthly |
| People | Training completed and recorded | Quarterly |
| Suppliers | Provider security assurances reviewed | Annually |
| Response | Incident plan rehearsed | Annually |
The checklist matters because it produces evidence. When a regulator or insurer asks what you did, a dated checklist answers the question in seconds.
Practice 5: Test and Review Your Cybersecurity Practices Every Quarter
Quarterly review is the practice that keeps the other four honest. Controls decay: staff leave, systems change, and a backup that restored cleanly last year may now fail.
At each review, ask three questions. Did any control fail since the last review? Has anything changed in how we hold client data? What would we do differently in an incident?
We recommend pairing the review with a short external assessment once a year.
Conclusion
The firms that get breached are rarely the ones with no plan; they are the ones whose plan was never tested. If your practice is juggling these five practices without in-house IT support, we can take that weight off your team. KeyInsite Consultancy provides round-the-clock UK-based support, same-day on-site availability and bespoke IT solutions tailored to legal practices, with jargon-free advice and clear, transparent investment. Schedule a free consultation and we will review your current position against each of these five practices.
Frequently Asked Questions
What are the best cybersecurity practices for law firms?
The five practices that matter most are following the SRA and ICO guidance on client data, maintaining a written incident response plan, running regular cybersecurity training for law firms, working through a documented cyber security checklist, and testing your defences each quarter. Each one closes a gap attackers actively look for: weak staff awareness, slow reaction times, unpatched systems and untested backups. Firms that treat these as recurring tasks rather than one-off projects stay ahead of the threats.
What should a law firm’s incident response plan include?
A usable law firm incident response plan names who does what in the first hour: who isolates affected systems, who speaks to clients, who contacts the ICO within the 72-hour reporting window, and who liaises with your insurer and IT provider. Include contact details for out-of-hours escalation, a decision log template, and a communications script for clients. Review it every six months and run a tabletop exercise so the plan is tested before a real breach forces you to use it.
How often should law firms review their cybersecurity?
Quarterly reviews work well for most practices. Each quarter, check patch status across all devices, confirm backups restore correctly, review access permissions for leavers, and look at phishing test results. A fuller annual review should cover policies, supplier risk and training records. Reviews matter because law firm cyber security threats change constantly: new phishing tactics, unpatched software flaws and staff turnover all create fresh openings between annual audits.
What cybersecurity training should law firm staff receive?
Training should cover phishing recognition, safe handling of client documents, password and multi-factor authentication habits, and how to report a suspected incident without fear of blame. Short monthly sessions beat one long annual session because retention drops quickly. Include partners and fee earners, not just support staff, since senior staff are frequent targets of impersonation attacks. Keep records of who completed training, as the SRA expects you to evidence your controls.
