What is Zero Trust security and why is it replacing VPN?

Zero Trust is a security model that assumes no user, device, or network segment is inherently trusted — every access request is verified based on identity, device health, and context. Traditional VPNs grant broad network access once connected, creating lateral movement risk. ZTNA (Zero Trust Network Access) grants least-privilege access to specific applications only, reducing the blast radius of any breach.

Security

Best Network Security Software 2026

Compare network security solutions — firewall, VPN, and Zero Trust/SASE platforms to protect your organization's perimeter.

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What is Network Security?

Network security solutions protect the organization's infrastructure from external and internal threats. Firewalls and UTMs control traffic at the perimeter, VPNs secure remote access, and Zero Trust / SASE architectures replace traditional perimeter models with identity-based, continuous verification.

Who needs this?

Replacing on-premise VPN with Zero Trust Network Access (ZTNA)
Implementing next-generation firewall with application awareness
Providing secure remote access for a distributed workforce

Subcategories

Firewall & UTM VPN Zero Trust / SASE

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Frequently Asked Questions

Q.What is Zero Trust security and why is it replacing VPN?: Zero Trust is a security model that assumes no user, device, or network segment is inherently trusted — every access request is verified based on identity, device health, and context. Traditional VPNs grant broad network access once connected, creating lateral movement risk. ZTNA (Zero Trust Network Access) grants least-privilege access to specific applications only, reducing the blast radius of any breach.