Zero Trust in Practice: How to Replace Traditional VPNs
Security · 1 min
Articles by Bruno Roque
The Zero Trust model reduces unnecessary network exposure and strengthens access control. Discover how a ZTNA approach can gradually and securely replace traditional VPNs.
TL;DR
- ZTNA grants access only to necessary applications, rather than exposing entire network segments
- Access is continuously validated based on identity, context, and device status
- Migration can be carried out gradually with minimal user impact
- A distributed architecture contributes to a consistent experience across different locations
Why traditional VPNs are no longer sufficient
VPNs continue to play an important role in many organizations but were designed for a different access model than today's. In many cases, they grant broader access than strictly necessary, increasing the exposure surface when a credential or device is compromised. The [Zero Trust Network Access (ZTNA)](/en/solutions/zero-trust-ztna) model takes a different approach. Each request is validated based on user identity, access context, and device status, providing access only to the necessary resource.
Our migration process
Implementation begins with inventorying applications and user profiles. Then, appropriate access policies are defined for each group, allowing for a phased and controlled migration. During the process, existing solutions can coexist, reducing operational impact and allowing a progressive transition to the [new model](/en/solutions/sd-wan-sase).
Benefits of the Zero Trust approach
A Zero Trust-based architecture strengthens access control, reduces unnecessary resource exposure, and improves visibility into who accesses each application. Furthermore, it provides a more consistent experience for remote users, without relying exclusively on [traditional network access models](/en/solutions/redes-lan-wan).
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Related
- Zero Trust / ZTNA
- SD-WAN / SASE
- Network Security