A legacy VPN can turn one approved remote-work request into broad network access, another firewall exception, and a new support burden. A Global Secure Access VPN strategy gives IT leaders a more controlled way to connect users to the apps and services they need.
For commercial mid-market firms, Microsoft Global Secure Access is not about replacing one client with another. It’s about reducing outage exposure, limiting lateral movement, and making access decisions easier to review through identity-centric security. I start with the applications, identities, and business processes that the current VPN keeps alive.
Key Takeaways
- Microsoft Global Secure Access replaces broad VPN network reachability with identity-centric access to approved Microsoft 365, SaaS, private, and internet resources.
- Microsoft Entra Internet Access governs web and SaaS traffic, while Microsoft Entra Private Access publishes private applications through connectors instead of exposing an entire network.
- Conditional Access, trusted-device requirements, source IP restoration, and carefully scoped TLS inspection make access decisions more defensible and investigations more reliable.
- Application discovery must come before VPN entitlement removal, including protocol, port, dependency, ownership, and business-impact testing for difficult workloads.
- A successful retirement plan combines licensing and operating-cost analysis with phased pilots, documented exceptions, production-ready fallbacks, and clear leadership approval.
Why the legacy VPN creates a business problem
Most VPNs were built for a time when employees needed a network extension to reach a data center. That model becomes expensive when most work happens in Microsoft 365, SaaS applications, and a smaller set of private business systems.
Broad network access raises the cost of an incident
After a VPN authenticates a user, it often grants reachability to a subnet or large network segment. Internal firewalls and permissions may limit activity, yet the VPN still exposes paths that the user doesn’t need.
That design expands the network security perimeter and increases the work required during a security incident. Teams must identify existing access, reachable systems, and whether emergency restrictions will interrupt business. An application-specific, destination-based access model narrows reachability to approved applications, addresses, and ports.
Support costs hide behind “temporary” exceptions
I often find that a VPN replacement discussion begins after years of accumulated exceptions. A contractor needs a legacy file share. An executive needs access while traveling. A new cloud infrastructure service needs a split-tunnel rule. Each request may look small, but the shared VPN becomes harder to document and support.
This affects small-business IT teams as much as enterprise operations. A single VPN appliance can become a dependency for remote staff, data-center technology, and systems that have not moved to the cloud. When it fails, the business feels the outage through delayed orders, missed service work, and idle employees.
Global Secure Access VPN changes the access contract
Microsoft Global Secure Access is a Security Service Edge offering that brings Microsoft Entra Internet Access and Microsoft Entra Private Access into a unified control plane. Microsoft’s Global Secure Access product overview describes the service as identity-centric access for Microsoft 365, SaaS, private, and internet traffic.
The practical change is simple: identity-centric security applies Zero Trust principles to a named destination, not an entire private network.
Traffic forwarding profile
The Global Secure Access client applies this profile to managed devices. The profile determines whether Microsoft 365, private application, or internet traffic passes through the service.
Conditional Access then brings identity, device state, location, and risk signals into the access decision. A user may reach a finance application from a compliant corporate device, while an unmanaged device receives no path at all. That is a more defensible access model than asking whether the user has connected to the VPN.
Private connectors publish applications, not networks
Microsoft Entra Private Access connects users to internal resources through a private network connector. The connector creates outbound connectivity to the service, removing the usual need to expose an inbound VPN entry point through the firewall.
Administrators publish resources through fully qualified domain names, IP addresses, and ports. Quick Access configuration guidance is useful for an early private-app pilot because it supports a controlled, application-by-application rollout.
I do not treat this as a lift-and-shift project. A private application must have a clear owner, an understood protocol, and a tested access path before it replaces its VPN dependency.
Microsoft Entra Internet Access versus Private Access
The two services solve related but different problems. Microsoft Entra Internet Access governs web and SaaS traffic, while Microsoft Entra Private Access provides Zero Trust Network Access for private resources that once required a VPN.
| Decision area | Entra Internet Access | Entra Private Access |
|---|---|---|
| Primary traffic | Web, SaaS, AI tools, and internet destinations | Private apps, internal web services, and defined network resources |
| Primary control | Web categories, FQDN rules, and user-aware access policies | Per-app access through private network connectors |
| Business outcome | Limits shadow IT and reduces unsafe browsing paths | Replaces broad VPN reachability with named application access |
Internet Access controls public web and SaaS use
Entra Internet Access is an identity-aware Secure Web Gateway. It supports Web content filtering, FQDN filtering, traffic logging, and policy enforcement through Conditional Access. Microsoft explains how Internet Access security profiles group those filtering rules for specific users.
This matters when employees use unapproved AI tools, unsanctioned file-sharing sites, or personal cloud storage. Those choices can expand Shadow IT during normal work. A policy can block a category, allow a business-approved application, or direct a higher-risk service through tighter controls.
Private Access limits reachability to known resources
Private Access works best when the business can name the resource and its required connection behavior. Common candidates include intranet sites, file services, private web applications, administrative portals, and line-of-business systems.
Remote network connectivity can extend the architecture to branch locations, but it should remain a separate design decision. An application-specific or destination-based VPN replacement for remote users doesn’t automatically justify changing every site-to-site connection on day one.
Conditional Access turns access policy into a business control
The service has more value when it works with the Conditional Access policies you already manage in Microsoft Entra ID. I recommend building those policies around business roles and application risk, not generic network groups.
Require trusted devices for sensitive private apps
Managed devices, endpoint security, and device hardening should affect who can access private systems. For example, an accounting group may require phishing-resistant authentication, a compliant device, and a specific managed browser before it reaches a financial application. This combination operationalizes Zero Trust principles instead of adding another network group.
Cybersecurity services also need to map existing controls before policy changes begin. If you already use a Cloud Access Security Broker, endpoint detection tooling, or mobile device management, document where each control applies. Duplicate rules create confusion, while missing rules create exposure.
Universal tenant restrictions deserve similar care. They can prevent users from signing into unapproved Microsoft 365 tenants, but supplier access and merger-related tenants need an approved exception process.
Preserve source context for better investigations
Without Source IP restoration, Microsoft Entra ID sign-in logs may show a security edge address instead of the user’s original network egress location. That can create false atypical-travel alerts and waste investigation time.
Microsoft’s source IP restoration guidance explains how the service securely communicates the original egress IP to Microsoft Entra ID and Microsoft Graph. I include that control in the initial design, then validate sign-in events and M365 audit logs during the pilot.
TLS inspection also needs a narrow policy. It can provide visibility for selected destinations, yet it requires certificate deployment, privacy decisions, and tested bypasses. Microsoft’s TLS inspection policy documentation supports a context-aware approach rather than a blanket interception rule.
Price the service and the operating model
The licensing line item is only one part of the business case. The larger decision compares a managed identity-based access service with the operational cost of maintaining VPN hardware, concentrators, firewall rules, emergency changes, and remote-access support.
Start with current Microsoft licensing
As of August 2026, Microsoft lists both standalone offerings at $5 per user per month with annual payment. Microsoft Entra Suite starts at $12 per user per month with annual payment, subject to eligibility and agreement terms. Review Microsoft Entra plans and pricing during budgeting because tenant agreements and bundled licensing affect the final commercial position.
Both Microsoft Entra Internet Access and Microsoft Entra Private Access require Microsoft Entra ID P1 or P2 for users. Therefore, a Microsoft 365 license inventory is part of the assessment. Don’t price access for every directory object when only a defined population uses the service.
Account for implementation and avoided costs
A credible total-cost model includes endpoint deployment, connector hosts, policy engineering, logging, help-desk readiness, and change management. It should also identify coexistence costs during the transition.
The model should identify costs that can decline over time, such as VPN appliance renewals, third-party remote-access subscriptions, and recurring firewall administration. Cloud management and infrastructure optimization matter here. If the new design leaves three overlapping remote-access tools in place, the business has added cost rather than removed it. The financial case should show how the proposed design improves business continuity and security without assuming that every legacy connection disappears immediately.
Assess applications before retiring VPN access
Application discovery must precede any VPN entitlement removal, because the cleanest architecture can still fail when a required application has undocumented connection behavior. I require an access inventory before any group loses its VPN entitlement.
Map protocols, dependencies, and business ownership
For each enterprise application, capture the business owner, user population, authentication method, DNS name, IP address, ports, protocol, data sensitivity, and support dependency. This work identifies which applications fit Microsoft Entra Private Access, which belong behind a browser-based service, and which need a temporary exception.
Office 365 migration projects often expose this problem. Teams move collaboration workloads to Microsoft 365 but retain a private document-management server or application database. Secure cloud architecture requires a clear boundary between cloud services and remaining internal dependencies.
Restaurant POS support and kitchen technology solutions need extra care. Many depend on local peripherals, vendor-managed systems, or network discovery. They may need segmentation and local support access rather than a remote user path through private access.
Pilot difficult applications before cutover
Start with a small group and a low-risk private application. Then expand to applications that use legacy authentication, fixed IP allow lists, large file transfers, or nonstandard protocols.
SQL named instances deserve deliberate testing. Service discovery and dynamic ports can complicate a defined access policy. Also test users who work in the same office as the target resource. A poorly planned route can send local traffic through an unnecessary external path and create avoidable latency.
Microsoft maintains a Global Secure Access known limitations page that should be part of technical acceptance. Test findings should decide the cutover schedule, not a target date on a project plan.
Separate production capabilities from preview features
Microsoft’s core services, Microsoft Entra Internet Access and Microsoft Entra Private Access, are commercially available and appropriate for production assessment. However, I keep preview features outside the dependency path for a VPN retirement decision.
| Capability | Status in August 2026 | Recommended use |
|---|---|---|
| Core Internet Access and Private Access | GA commercial scope | Use after tenant and workload validation |
| Private Access for Entra-registered Windows devices | Preview | Pilot only, with an alternate supported device path |
| Source traffic type filtering | Preview and client-based only | Do not make it a required governance control |
Keep preview functionality out of the final cutover
The Global Secure Access Windows client release history identifies Private Access support for Entra-registered devices as preview. That status matters when your endpoint estate includes bring-your-own, contractor, or lightly managed Windows devices.
Preview features can still provide useful pilot insight. They should not become the only answer for a contractual access requirement, executive travel workflow, or customer-facing service process. A production design needs documented fallbacks, an alternate supported device path, tested device requirements, and an owner for release monitoring.
What leadership should review before a cutover
A VPN replacement should end with a decision package, not a product demonstration. At RVA Tech Visions, I use technology consulting to turn technical findings into a practical approval record for IT and business leadership.
Deliverables that make the decision auditable
Tailored technology services should produce artifacts that your internal team can operate after the project closes. A useful assessment includes:
- An application access matrix with owners, protocols, user groups, and proposed access method.
- Traffic forwarding profile design for Microsoft, private, and internet traffic.
- A connector topology with availability, network placement, and firewall requirements.
- A Conditional Access policy map with exclusions, pilot groups, and rollback steps.
- A cost model that compares licenses, implementation effort, retained VPN needs, and expected reductions.
This output gives a business technology partner and your IT team the same view of the work. It also prevents innovative IT solutions from becoming disconnected tools with unclear ownership.
Review commercial risk, not only technical fit
Leadership should review which applications can leave the VPN, which must remain during coexistence, and what financial exposure each exception creates. The final review should include pilot results, user-impact findings, support ownership, M365 audit logs, and a phased cutover recommendation.
That approach supports digital transformation without forcing a risky all-at-once migration. It also gives managed IT for small-business clients and larger mid-market teams an IT strategy for SMBs that connects access control to daily operations.
Frequently Asked Questions
What is Global Secure Access VPN?
Global Secure Access is Microsoft’s identity-centric Security Service Edge offering for Microsoft 365, SaaS, private applications, and internet traffic. It is not simply a replacement VPN client; it changes access from broad network connectivity to controlled access for named destinations.
What is the difference between Microsoft Entra Internet Access and Private Access?
Microsoft Entra Internet Access governs web, SaaS, and other internet traffic through filtering and access policies. Microsoft Entra Private Access provides application-specific access to internal resources that previously required a VPN.
Can Global Secure Access replace every VPN connection?
Not immediately, and not in every environment. Each application must be assessed for its protocol, dependencies, authentication method, network behavior, and support requirements before its VPN access is removed.
How should an organization begin a VPN replacement project?
Start with an access inventory, a small low-risk pilot, and a defined Conditional Access policy for users and devices. Test difficult applications, review known limitations, document exceptions, and use the results to plan a phased cutover.
What costs should be included in the business case?
The model should include licensing, endpoint deployment, connector hosts, policy engineering, logging, support readiness, and coexistence during the transition. It should also account for avoided VPN appliance renewals, third-party remote-access subscriptions, firewall administration, and outage-related operational costs.
A controlled path away from VPN dependency
The strongest business case for Legacy VPN replacement is a narrower access model that reduces operational overhead and limits unnecessary network reachability. Licensing matters, yet the real value comes from knowing exactly which users can reach which resources under which conditions.
I recommend retiring VPN access in measured phases, with application testing and a documented exception plan. That turns a remote-access upgrade into a durable business continuity and security decision.
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