Legacy VPN access remains one of the hardest parts of enterprise security to modernize. The latest Microsoft Mechanics short shows a compact example of what the replacement pattern looks like: a user reaches an on-premises application through Microsoft Entra Global Secure Access, signs in with a passkey, and is evaluated by Conditional Access before access is allowed.
What the video demonstrates
The scenario starts with a user opening an internal pricing dashboard from Microsoft Edge. Instead of launching a traditional VPN, the device has the Global Secure Access client installed. Access to the on-premises resource is mediated through identity controls, not broad network-level connectivity.
That distinction matters. A VPN often creates a wide tunnel into a private network and then relies on downstream segmentation and application controls to reduce risk. Global Secure Access is positioned around per-application permissions, identity scope, and continuous policy evaluation. For IT teams, that is a much cleaner model for reducing unnecessary network exposure while keeping familiar internal applications reachable.
Why identity-scoped access is operationally important
The strongest message in the demo is that access is granted per app and scoped to identity. In practical terms, this supports a Zero Trust operating model: users and devices should receive only the access needed for the specific application, under the current session conditions, and no more.
For cloud and infrastructure teams, this can reduce several recurring pain points:
- Less dependency on broad VPN connectivity for routine internal app access.
- No need to expose inbound firewall ports or public IP addresses for the protected resource.
- A policy model that can account for user risk, device context, and session signals.
- A clearer path to applying modern authentication controls around older internal applications.
The video also notes that the approach can work with other on-premises applications and Active Directory scenarios that do not natively support modern authentication. That is significant because many organizations cannot modernize every legacy app at once. A secure access layer can help reduce risk while application modernization proceeds over time.
Security impact: token theft and continuous evaluation
The short specifically calls out a compromised device, hardware-based token theft, and token replay as attack scenarios. The defensive point is that dynamic policies can respond when user risk becomes elevated. Instead of assuming a session remains trustworthy, token access can be revoked and the user can be forced into remediation.
This is the practical value of continuous access evaluation: trust is not a one-time decision made at sign-in. If risk changes, access should change too. For administrators, that means designing policies that do more than approve or deny initial access. They should also revoke, step up, or remediate when identity signals indicate that the session is no longer safe.
Key takeaways for IT teams
First, evaluate where VPN is still being used as a default path to internal applications. Not every application requires a network tunnel, and broad tunnels can create avoidable blast radius.
Second, map applications to identity-based access policies. Prioritize high-value internal apps, sensitive dashboards, and services currently reachable only through VPN.
Third, combine access modernization with phishing-resistant authentication such as passkeys and with Conditional Access policies that evaluate risk and session context.
Finally, plan for legacy reality. Many organizations still depend on applications that were never designed for modern authentication. A Global Secure Access pattern can provide a bridge by wrapping access decisions around the application without requiring every legacy system to be rewritten immediately.
Bottom line
The Microsoft Mechanics demo is short, but the architecture message is clear: replacing legacy VPN access is not just a networking project. It is an identity security project. Microsoft Entra Global Secure Access helps shift access from broad network trust to app-specific, identity-scoped, continuously evaluated control. For organizations pursuing Zero Trust, that can mean fewer exposed paths, tighter policy enforcement, and a better response when user risk changes.