A VPN creates an encrypted tunnel for your internet traffic — but the business version and the consumer version are solving very different problems, and confusing the two can leave you with a false sense of security.
VPN is one of those terms everyone has heard and most people think they understand. You're in the NerdSquad IT Dictionary, so let's sort out what a VPN actually does, where it genuinely helps, and where it doesn't do what people assume it does.
VPN stands for Virtual Private Network. The name describes exactly what it is: a network connection that works like a private, direct line — even when it's running over the public internet.
Imagine you need to pass a confidential document to a colleague across town. You could mail it — and hope no one intercepts it — or you could drive it over yourself in a locked car on a private road. A VPN is the locked car on the private road. Your data travels through an encrypted tunnel that outside observers can't read, even if they can see the traffic moving.
Without a VPN, data sent over public or untrusted networks (coffee shop WiFi, hotel internet, a client's guest network) travels in a way that can potentially be intercepted. With a VPN, that traffic is encrypted end-to-end.
This distinction matters a lot, and most people don't know it exists.
Consumer VPNs (NordVPN, ExpressVPN, etc.) are primarily sold as privacy tools. They route your traffic through the VPN provider's servers, masking your IP address and making it harder for websites and advertisers to track you. They do provide encryption, which is useful on public WiFi. What they don't do: give you access to your company's internal systems, protect business data under compliance frameworks, or meet the technical standards required by HIPAA, PCI-DSS, or CMMC.
Business VPNs (also called corporate or enterprise VPNs) connect a remote employee's device directly to the company's private network — as if they were physically sitting in the office. This is what allows a remote worker to access internal file servers, line-of-business applications, EHR systems, and other resources that aren't exposed to the public internet. The traffic is encrypted, the connection is authenticated, and access is controlled by IT policy.
A staff member working from home using a consumer VPN is not the same as them being securely connected to the practice network. If your remote access strategy is "everyone has a personal VPN subscription," that's a gap worth addressing.
Business VPNs are one layer in a broader remote access and security architecture. They're particularly important for:
A VPN encrypts traffic in transit. It does not:
VPNs are also increasingly being supplemented — and in some architectures replaced — by Zero Trust Network Access (ZTNA) models, which take a more granular approach to verifying who can access what. That's a topic for its own entry.
We configure and manage business VPN solutions as part of managed IT services, paired with MFA and endpoint protection to close the gaps a VPN alone doesn't cover. For clients in healthcare and financial services, we make sure the remote access configuration meets the specific technical requirements of the applicable compliance framework — not just "we have a VPN" but "we have a VPN configured the right way."