VPN vs. Zero Trust: Which Access Model to Choose in 2026

Zero Trust Network Access (ZTNA) is often presented as a replacement for VPN, but it is actually based on a different premise: we do not trust any user, device, or network by default. Let's look at what this means in practice for your business.

TL;DR — Key Takeaways

• A VPN secures the connection; Zero Trust verifies every individual access request.
• The transition is gradual — it does not require a complete infrastructure overhaul.
• Identity is the foundation: MFA, conditional access, and device health.
• VPN remains relevant for legacy internal systems without modern authentication support.

How the Models Differ

The classic model assumes that everything inside the network is trustworthy. A user connects via VPN and gains access to the entire segment. If their device is infected, the infection spreads through that same channel.

Instead, Zero Trust verifies the user’s identity, the device they are using, whether the device is compliant, and the login risk level for every access request. Access is granted only to a specific application, not the entire network.

Why Businesses are Switching

The network perimeter vanished when data moved to the cloud and employees moved home.

• Stolen credentials are the primary entry point for attackers — a VPN cannot stop them.
• Third-party contractors need access to a single system, not your whole network.
• Zero Trust allows for immediate access revocation when an employee leaves.
• Monitoring is significantly more granular: who, when, with what, and to what.

How to Get Started — Recommended Process

1. Organize identity management: single sign-on (SSO), MFA, and elimination of shared accounts.
2. Enroll devices into management systems and set compliance policies.
3. Publish your first application via VPN-less access (e.g., a web portal).
4. Implement conditional access based on device, location, and risk.
5. Gradually migrate applications and reduce the scope of VPN access.
6. Retain VPN only for systems that cannot be published through other means.

Comparison of Models

Common Mistakes

The most common mistake is purchasing a 'Zero Trust solution' before organizing identity management. Without MFA, a clean directory, and managed devices, any such project is built on sand.

The second mistake is attempting a total cutover for everyone at once. Publishing applications gradually while running a VPN in parallel allows for a rollback if something fails.

How VitalIT Can Help

At VitalIT, we organize identities, devices, and access policies to ensure a smooth, phased transition. Check out our Cybersecurity and Cloud & Microsoft 365 services.

Related: Hybrid Work: Secure IT Support and Passkeys: The Future of Passwords.

Frequently Asked Questions (FAQ)

Do we have to eliminate our VPN?

No. Most companies keep it for legacy internal systems, but they significantly reduce the number of users and the scope of access.

What do we need to start?

Entra ID with MFA, managed devices, and a prioritized list of applications.

Is Zero Trust expensive?

Basic components are often already included in Microsoft 365 Business Premium licenses; the cost is primarily in planning and implementation.

How does this affect employees?

Generally positive — it means less manual connecting and fewer login prompts.

How do we handle access for external contractors?

By using guest accounts, time-limited access to a single application, and mandatory MFA.