The VPN model made sense when work happened in an office on a trusted LAN: authenticate once at the edge, and everything inside is trusted. But attackers stopped attacking the perimeter and started walking through the front door with a phished password — and once inside a flat, trusted network, they move sideways freely.
That is the gap zero trust closes. Instead of trusting the network, it verifies the identity and the device on every request.
What a VPN actually trusts
A VPN grants broad network access after a single authentication. From then on, being “on the tunnel” is treated as proof — so a stolen session, a compromised laptop, or an attacker who phished one credential inherits that trust and can reach whatever the network exposes.
The failure mode is lateral movement: one foothold becomes the whole estate, because nothing re-checks the user after the initial login.
What zero trust verifies instead
Zero trust grants access to a proven identity on a known device — never to an IP range or a tunnel. With CyberCyko’s zero-trust IAM, each sign-in is a live check against a key sealed in the device’s hardware, and sensitive actions re-verify rather than trusting a session indefinitely.
Being “on the network” grants nothing on its own. A copied cookie or a leaked password can’t reproduce the hardware signature, so the classic phishing-to-foothold chain simply breaks.
You don’t have to rip out the VPN on day one
Zero trust is a model, not a single product swap. CyberCyko layers in front of your existing SSO and apps, so you can put phishing-resistant, hardware-bound verification in front of the resources that matter first, then expand — contracting the blast radius as you go.
Ready to see it in your environment?
See Zero Trust IAM