Zero Trust Architecture Implementation Guide — Identity, Network, Apps | Vaarta

Core Principles

1. Verify explicitly - always authenticate and authorize

2. Least privilege - grant minimum necessary permissions

3. Assume breach - design assuming attackers are inside

Implementation Layers

Identity

Enforce MFA, implement SSO, use hardware keys for privileged accounts.

Devices

Verify device health, enforce patch levels, implement device certificates.

Network

Micro-segmentation, zero-trust network access (ZTNA), DNS security.

Applications

Verify user identity per request, implement API gateway auth, encrypt data at rest and transit.

Steps

1. Inventory all assets

2. Define access policies

3. Deploy identity infrastructure

4. Segment network

5. Monitor and adapt

Vaarta.space

Validates DNS and HTTP security layers of your Zero Trust implementation.

Conclusion

Zero Trust is a journey. Start with identity and expand to network and application layers.