Zero Trust Network Access (ZTNA) is emerging as a practical response to a problem many organisations are already feeling– that traditional VPN‑based remote access no longer reflects how people, applications and environments actually operate.
Secure remote access was designed for a time when users, devices and systems sat neatly inside a defined network perimeter. Today, applications are spread across cloud platforms, teams work from anywhere, and access happens from a wide range of devices. Yet many organisations still rely on VPNs that grant broad access once someone connects.
The limitations of traditional remote access
When a VPN connection is established, users are often given visibility into far more of the network than they need to do their job. In practical terms, that means:
- Access is based on connection, not necessity
- Credentials become a high‑value target
- A single compromise can enable lateral movement across systems
If an attacker gains access to valid credentials, the damage can extend well beyond the original entry point, increasing risk and incident impact.
How ZTNA works differently
ZTNA changes the way access is granted. Instead of connecting users to a network:
- Users are connected only to specific applications
- Access decisions are based on identity, device health and context
- Trust is continuously verified, not assumed
This means applications aren’t broadly exposed, users only see what they need, and opportunities for lateral movement are significantly reduced.
Reducing risk without adding complexity
Beyond the security benefits, ZTNA also brings operational advantages. Access management is simpler and reliance on legacy infrastructure is reduced. User experience is also improved, without full network tunnels, and there is clearer visibility into who is accessing what, and how often.
By treating access as a control point rather than a convenience, organisations can better support flexible working models while actively reducing risk.
Moving from VPNs to ZTNA
For organisations still reliant on traditional VPNs, moving to ZTNA doesn’t have to be an all‑or‑nothing decision. In many environments, ZTNA can be introduced incrementally – sitting in front of cloud or on‑premises applications and limiting access based on identity and device context, rather than network location. This allows organisations to reduce exposure without disrupting existing operations, and gain improved visibility into access patterns. Remote access can then be gradually modernised as environments evolve.
The key shift is treating access as a security control, not just a connectivity requirement.
For organisations exploring how to modernise remote access, reviewing how ZTNA could be introduced within their environment is often a practical place to start – particularly as cloud adoption and flexible working continue to accelerate. Our Manage IT team works with ZTNA solutions that help organisations gradually transition away from legacy VPNs while improving visibility and control. If you are still heavily reliant on VPN‑based access, it may be time to explore a shift today.
