VPN vs Zero Trust

Why they differ

A VPN trusts whoever gets into the network; Zero Trust checks every request no matter where it comes from.

Networking

An encrypted tunnel across a public network that makes a distant device act as if it were inside a private one.

Formal

A technique that wraps a device's packets inside encrypted packets sent to a device at the far end, giving it a private connection to a network it is not physically attached to.

In plain English

Like a private, sealed tunnel from your home straight into the office building, so the walk through the busy public street no longer matters.

In practice

A civil servant at a ministry, working from home, connects to the ministry's VPN and confirms with MFA before she opens the internal case system.

Why it matters

It lets staff use internal systems safely from anywhere, but once inside, a user often reaches far more than they need - a weakness Zero Trust aims to fix.

Zero Trust

Controls & technical basics

A security principle of never trusting anyone automatically - every request is checked, even from inside the network.

Formal

A design approach in which no user, device or network location is trusted by default; each request for access is checked for identity, device health and need, and given only the least access required for that one task.

In plain English

Like a hospital where your badge is checked at every ward door, not just at the main entrance - getting inside the building does not get you everywhere.

In practice

An employee at her desk inside a ministry opens the payroll system and is still asked to prove who she is, while her laptop is checked for current updates before the page loads.

Why it matters

Once one machine inside is taken over, a network that trusts its insiders lets the attacker roam freely; checking every request limits how far one break-in spreads.