Remote Access in 2026: When to Use VPN and When to Move to Zero Trust

The way employees connect to business resources has changed dramatically. In 2019, a VPN was the default answer to remote access. In 2026, the right answer depends on what your employees are accessing, how sensitive it is, and how much of your infrastructure has moved to the cloud.

What VPN Does Well — and Where It Falls Short

Traditional VPNs create an encrypted tunnel from a remote device to your corporate network, granting access to everything on that network once connected. This works well for legacy on-premises applications that cannot be reached any other way. It fails in cloud-heavy environments because routing traffic through a VPN to reach Microsoft 365, Salesforce, or Google Workspace adds latency without adding security.

• VPN advantages: Simple setup, widely understood by employees, good for on-premises app access
• VPN disadvantages: Grants broad network access once connected, performance degrades with cloud app traffic, difficult to enforce least privilege, full network exposure if credentials are stolen

Zero Trust Network Access (ZTNA): The Modern Alternative

ZTNA flips the model: instead of connecting users to the entire network, it grants access to specific applications and resources based on verified identity, device health, and context. If an employee's credentials are stolen, the attacker gets access only to what that user is authorized to see — not the entire network.

Microsoft Entra Private Access (Azure ZTNA)

For businesses already on Microsoft 365, Entra Private Access provides ZTNA capabilities for on-premises apps without requiring a traditional VPN. It integrates with Conditional Access policies and device compliance checks, making it a natural extension of an existing M365 security investment.

Which Should You Choose?

• Still running mostly on-premises infrastructure with legacy apps: VPN is fine for now; plan migration toward ZTNA over 12–24 months
• Primarily cloud-based with Microsoft 365, cloud ERP, SaaS tools: Move to ZTNA now — VPN is adding friction without adding security
• Hybrid environment: Use ZTNA for cloud resources, evaluate Private Access for on-premises legacy apps
• Regulated industry (healthcare, financial): ZTNA's per-application access model makes compliance auditing significantly easier

Implementation Timeline

A small business migration from VPN to ZTNA typically takes 4–8 weeks depending on the number of applications and complexity of your network. The process includes application discovery, ZTNA policy design, pilot deployment with a subset of users, and full rollout with training.