VPN for Lawyers and Legal Professionals: Protecting Attorney-Client Privilege

You carry confidential client information everywhere — on your laptop at the courthouse, on your phone at the airport, on your home network when you're reviewing documents at midnight. Every one of those connections is a potential exposure point for attorney-client privileged communications.

Law firms are one of the most targeted industries in cybersecurity. A 2024 survey found that 40% of law firms had experienced a security breach, and the average cost of a data breach for a law firm reached $5.08 million — a 10% increase year over year. More alarming: 56% of firms that suffered a breach lost sensitive client information.

A VPN isn't optional for attorneys anymore. It's a professional obligation.

Why Law Firms Are Prime Targets

Hackers don't go after law firms because they want legal advice. They go after them because law firms hold some of the most valuable data in existence: merger and acquisition details before they're public, criminal defense strategies, settlement figures, medical records, financial disclosures, and trade secrets. That information has enormous value on the dark web and as leverage in ransomware attacks.

According to a 2026 report, 20% of US law firms were targeted by cyberattacks in the past year, and 8% confirmed they actually lost data. One New York law firm was fined $200,000 after a ransomware attack exposed 114,000 individuals — the investigation found the firm had failed to implement basic security measures including encrypted remote access.

The threat isn't theoretical. It's a pattern, and regulators are watching.

What the ABA Requires From You

The American Bar Association has made clear that cybersecurity is a competence issue, not just an IT issue.

ABA Model Rule 1.1, Comment 8 states that lawyers must "keep abreast of changes in the law and its practice, including the benefits and risks associated with relevant technology." Failing to secure client communications can constitute a violation of the competence standard.

ABA Model Rule 1.6(c) goes further: attorneys are required to "make reasonable efforts to prevent the unauthorized disclosure of, or unauthorized access to, information relating to the representation of a client." Using an unencrypted connection on public Wi-Fi to access client files is a direct violation of this obligation.

Bar associations across the country — including guidance published by the Computer Resources of America citing 2026 bar guidance — explicitly list VPN use as a required security measure for attorneys accessing firm resources remotely.

This isn't a gray area. If you're working on client matters outside the office without a VPN, you're likely out of compliance with your bar's technology competence requirements.

What a VPN Actually Does for Attorneys

A VPN creates an encrypted tunnel between your device and the internet. All data passing through that tunnel — your emails, your document uploads, your client portal logins, your video calls — is encrypted before it leaves your device. Anyone intercepting that traffic sees only scrambled data.

Here's what that means in practical terms for legal work:

• Working from a courthouse or hotel Wi-Fi: Public networks are unencrypted. Without a VPN, anyone on the same network can potentially intercept your traffic. With a VPN, your connection is encrypted end-to-end.
• Remote access to case management software: Platforms like Clio, MyCase, and iManage contain privileged client communications. A VPN ensures that access is encrypted even on home networks or mobile data.
• Sending privileged documents via email: A VPN encrypts your connection to email servers, adding a critical layer of protection beyond standard TLS.
• Protecting communications with co-counsel: Multi-firm matters involve sharing sensitive strategy across networks. A VPN keeps those communications private.

Attorney-Client Privilege in the Digital Age

Attorney-client privilege is one of the oldest protections in law. But it comes with a condition: the communication must be kept confidential. If you take reasonable steps to protect a communication and it's intercepted anyway, privilege generally holds. But if you transmit privileged communications over an unencrypted channel without reasonable precautions, courts have found that privilege may be waived.

A 2019 Forbes analysis on VPNs and attorney-client privilege noted that attorneys have a professional responsibility to use available technology to protect confidential communications — and that VPN use is one of the clearest ways to demonstrate that reasonable steps were taken.

In an era where opposing counsel, regulators, and bad actors are all technically sophisticated, "I didn't know the Wi-Fi was unsecured" isn't a defense.

What to Look for in a Legal VPN

Not all VPNs are appropriate for legal work. Here's what matters for attorneys:

• Zero-logs policy: Your VPN provider must not store records of your activity. If your VPN keeps logs, those logs could be subpoenaed. A verified zero-logs policy means there's nothing to hand over.
• AES-256 encryption: The same encryption standard used by the US government. This is the baseline for any professional use case. Anything weaker is unacceptable for client data.
• Kill switch: If the VPN connection drops unexpectedly, a kill switch cuts your internet access immediately rather than reverting to an unencrypted connection. For attorneys, an unexpected plaintext moment during a privileged call or file transfer is unacceptable.
• US-based operations: For compliance purposes, many law firms prefer — or are required — to use vendors that operate under US jurisdiction, not foreign privacy laws. Know where your VPN provider is incorporated and what laws govern them.
• No-leak DNS protection: DNS requests can reveal which websites you're visiting even when your traffic is encrypted. A professional-grade VPN routes DNS through its own encrypted servers.

CyberFence checks all of these boxes: zero logs, AES-256-GCM encryption, a kill switch on all platforms, US-based operations, and DNS leak protection built in. It was built for exactly this kind of professional use case.

The Business Case Beyond Compliance

Compliance is the floor, not the ceiling. There's a compelling business case for law firms that take cybersecurity seriously.

Research from Integris in 2025 found that 37% of legal clients said they would pay a premium to work with a law firm that demonstrates stronger cybersecurity practices. In an industry where trust is everything, your security posture is increasingly a differentiator.

Solo practitioners and small firms aren't exempt from this. Corporate clients, healthcare clients, and financial services clients are increasingly requiring cybersecurity attestations from outside counsel before sharing sensitive matters. A documented security policy that includes VPN use for all remote access is a basic expectation from sophisticated clients.

Practical Steps for Law Firms

Whether you're a solo practitioner or managing a 50-attorney firm, here's how to get started:

• Require VPN for all remote access. No exceptions — not for partners, not for support staff. Any device accessing firm resources outside the office should be on the VPN.
• Enable the kill switch. Ensure it's active on all devices, including mobile.
• Document your security policy. Bar associations increasingly ask for written security policies. Having one that specifies VPN requirements demonstrates reasonable efforts under Rule 1.6.
• Train your staff. The most sophisticated VPN is useless if a paralegal turns it off because it "slows things down." Build VPN use into onboarding and annual security training.
• Use DNS blocking. Web Shield and DNS-level filtering block access to known malicious domains — a critical layer against phishing attacks targeting legal staff.

The Bottom Line for Attorneys

The ABA has spoken. Your bar association has spoken. And the attack statistics are speaking loudest of all. Legal professionals handle some of the most sensitive data in any industry, and the professional obligations around that data are clear: you must take reasonable steps to protect it.

A VPN is one of the most concrete, documentable, affordable steps you can take. It's not a guarantee against every threat — no single tool is. But it closes the most common attack vectors that law firms face: unencrypted public Wi-Fi, intercepted remote access, and DNS-level surveillance.

Your clients trust you with their most sensitive matters. A compliance-grade VPN is part of honoring that trust. If you're not currently using one for all remote legal work, today is the day to start.

CyberFence offers a Free Trial with no commitment — try it on your laptop, phone, and tablet before your next courthouse trip or client call from the road.