Insights · Comparison
Zero trust versus VPN
A VPN extends the network to a remote user: once connected, the user is inside, and whatever the network allows is reachable. Zero trust access grants each request to each application based on the identity, the device and the context, without placing the user on the network. The difference matters when a credential or a device is compromised: with a VPN, the attacker is inside the perimeter; with zero trust, the attacker has whatever one identity on one device was permitted to reach, and nothing else. VPNs remain useful for specific cases; as the default remote access model they are the weaker choice.
At a glance
The criteria that decide it.
| Criterion | Zero trust access | VPN |
|---|---|---|
| Trust model | Verify every request by identity, device and context | Trust the network once connected |
| Blast radius of a compromise | One identity’s permitted applications | The network segment the VPN lands on |
| Device checks | Posture evaluated per request | Usually none beyond connection |
| User experience | Per-application access, often invisible | Connect, then everything; often slow |
| Migration effort | Identity, device posture and application inventory required | Already in place for most organizations |
| Audit and evidence | Per-request logs by identity and application | Connection logs |
Criteria
Each one, explained.
Trust model
The VPN model assumes the inside is safe. Attackers know that and target VPN credentials and appliances precisely because success puts them inside. Zero trust assumes nothing about location and decides each request on evidence about who and what is asking.
Blast radius
When a VPN credential is phished, the attacker has the network. When a zero trust identity is phished, the attacker has that identity’s applications, on a device that must pass posture checks, with every request logged. Containment is built into the model.
Migration
Zero trust is not a product. It requires a working identity platform, device posture, an inventory of applications and a sequence that moves them behind the access layer. The VPN often remains for the last few legacy systems during the transition.
Where VPNs still fit
Site-to-site connections, some operational technology and legacy protocols still need network-level connectivity. The point is to stop using the VPN as the default for people.
Recommendation
Who each option suits.
Move user access to a zero trust model, beginning with the applications attackers target most and the users with the most privilege, and keep the VPN only for the cases that genuinely need network-level connectivity. Before either, make MFA phishing-resistant, because both models fail when the identity is trivially stolen.
Sources
Primary references.
By David Selakovic · Published 2026-10-16 · Revised 2026-10-16 · Reviewed every 180 days