Cyber threats targeting law firms have increased dramatically over the past several years. Firms hold sensitive client data, financial records, and privileged communications — making them high-value targets.

The ABA Model Rules of Professional Conduct (Rule 1.6) require attorneys to make reasonable efforts to prevent unauthorized disclosure of client information. Here’s what that looks like in practice.

1. Multi-Factor Authentication (MFA)

Enable MFA on every account your firm uses — email, case management software, billing systems, and remote access. This single step stops the majority of account takeover attacks.

2. Email Security

  • Use a business email platform (Microsoft 365 or Google Workspace) — not personal accounts
  • Enable anti-phishing and anti-spoofing policies
  • Train staff to recognize phishing attempts quarterly

3. Endpoint Protection

Every device that touches firm data needs:

  • Next-generation antivirus (not Windows Defender alone)
  • Disk encryption (BitLocker for Windows, FileVault for Mac)
  • Automatic OS and software patching

4. Backup & Disaster Recovery

Follow the 3-2-1 rule:

  • 3 copies of your data
  • 2 on different media types
  • 1 offsite (cloud backup)

Test your backups quarterly. An untested backup is not a backup.

5. Access Controls

Apply least-privilege: staff should only access what they need for their role. Immediately revoke access when an employee leaves.

6. Incident Response Plan

Document what your firm will do if there’s a breach:

  1. Who to call (IT provider, cyber insurance, breach counsel)
  2. State notification requirements
  3. Client notification obligations

Need help auditing your firm’s security posture? Contact us for a free assessment.