Stealth Technology Group Team
Remote access has become a core requirement for modern businesses. Employees work from home, travel between offices, access cloud applications, and collaborate with colleagues across different locations. At the same time, businesses must protect sensitive company information, customer records, financial data, and internal systems from unauthorized access.
For years, Virtual Private Networks (VPNs) have been the standard solution for connecting remote employees to company networks. A VPN creates an encrypted connection between a user’s device and the corporate network, allowing authorized employees to access internal resources from outside the office.
However, the way businesses use technology has changed. Many organizations now rely on cloud platforms, SaaS applications, remote work environments, and third party services. Connecting every remote employee to the entire corporate network is not always necessary or desirable.
This is where Zero Trust Network Access (ZTNA) comes into the picture. Instead of automatically providing network level access after a successful VPN login, ZTNA evaluates the user’s identity, device, and access permissions before granting access to specific applications. For mid market businesses, the decision between VPN vs zero trust network access is not simply about choosing newer technology. It involves understanding existing infrastructure, security requirements, employee workflows, implementation costs, and long term IT strategy.
Both technologies have practical applications. The right choice depends on how employees work, which resources they need to access, and how much control the organization wants over remote connections.
What Is a VPN and How Does It Work?
A Virtual Private Network creates an encrypted connection between a remote device and a private business network. When an employee connects through a company VPN, their internet traffic travels through an encrypted tunnel to the organization’s network or VPN gateway.
After authentication, the employee can access resources permitted by the VPN configuration. These may include internal file servers, business applications, remote desktops, databases, and other company systems.
For example, an employee working from home may need to access an accounting application hosted on a server inside the company’s office. The VPN allows the employee’s laptop to establish a secure connection to the corporate network and communicate with that application.
VPNs are widely used because they are familiar, supported by many operating systems, and compatible with traditional business infrastructure. They can also support site to site connectivity between office locations and data centers. However, a VPN does not automatically provide comprehensive security. Encryption protects information while it travels between endpoints, but it does not guarantee that the connected device is secure or that the employee should have access to every resource on the network.
If an attacker steals an employee’s credentials or compromises a device, the attacker may be able to use the VPN connection to reach internal systems, depending on network segmentation and access controls. Microsoft discusses these risks in its guidance on securing privileged access intermediaries.
For organizations with traditional infrastructure, VPNs can remain useful. Businesses should nevertheless combine them with multifactor authentication, endpoint protection, access restrictions, and continuous monitoring. A well managed IT infrastructure management strategy can help maintain these controls.
What Is Zero Trust Network Access and How Does It Work?
Zero Trust Network Access is a security approach that provides users with access to specific applications and resources based on verified identity, device status, and access policies. The central principle is simple: never assume that a user or device is trustworthy simply because it has successfully connected to a network.
Under a traditional network access model, a VPN connection may provide access to a broad section of the corporate network. ZTNA takes a more targeted approach. It verifies the user and device, evaluates applicable security policies, and grants access only to authorized applications.
For example, an accounting employee may need access to the company’s financial software but have no business reason to access engineering systems, internal databases, or server administration tools. With ZTNA, the employee can receive access to the accounting application without receiving broad access to the entire corporate network.
The National Institute of Standards and Technology explains this approach in NIST Special Publication 800 207. Its zero trust architecture guidance focuses on protecting individual resources rather than relying on network location as the primary basis for trust.
A typical ZTNA deployment can evaluate several factors:
- User identity and authentication status.
- Multifactor authentication requirements.
- Device health and security compliance.
- Application specific access permissions.
- User location and connection context.
- Risk signals and suspicious activity.
Access policies can also change based on risk. For example, a user connecting from an unfamiliar location or an unmanaged device may be asked to complete additional verification or may be denied access.
ZTNA is particularly useful for organizations with remote employees, cloud applications, hybrid infrastructure, and distributed teams. It can also support a broader cybersecurity strategy built around identity protection and least privilege access.
VPN vs Zero Trust Network Access: Understanding the Key Differences
Although VPN and ZTNA both support secure remote access, their security models are different.
A VPN primarily creates an encrypted connection to a network. ZTNA focuses on providing controlled access to individual applications and resources.
The following comparison highlights the main differences.
| Feature | Traditional VPN | Zero Trust Network Access |
|---|---|---|
| Access model | Network level access | Application level access |
| Authentication | Usually performed when connecting | Identity and context based verification |
| Device security | Depends on additional controls and configuration | Can include device posture checks |
| Network visibility | Connected users may reach broader network segments | Users receive access to permitted resources |
| Lateral movement risk | Can be higher with broad network access | Reduced through granular access controls |
| Cloud application access | May route traffic through corporate infrastructure | Can provide direct, policy controlled application access |
| Implementation | Often familiar and straightforward in established environments | Requires identity, application, and policy planning |
| Management | VPN gateways, clients, and network permissions | Identity policies, application connectors, and access controls |
| Scalability | May require additional gateway capacity | Can scale through distributed service architecture |
| Best suited for | Legacy systems and network connectivity requirements | Application focused access and modern distributed environments |
The distinction is important for mid market organizations. A VPN may be appropriate when employees need access to multiple internal network resources. ZTNA can be a better fit when users need access to specific applications without being connected to the broader corporate network.
The UK National Cyber Security Centre’s introduction to ZTNA explains why traditional perimeter based security models are less suitable for organizations with distributed users and cloud hosted applications.
Security: Which Remote Access Model Provides Better Protection?
Security is often the biggest reason businesses consider moving from traditional VPNs to ZTNA.
VPNs provide an important security benefit through encrypted connections. However, encryption alone does not determine whether a remote access connection is safe. Organizations must also consider stolen credentials, compromised endpoints, excessive permissions, and unauthorized movement between internal systems.
A VPN user may receive access to several network resources after completing authentication. If the employee’s device is compromised, an attacker could potentially exploit that access to investigate other systems. This does not mean every VPN deployment is insecure. Network segmentation, strong authentication, endpoint monitoring, and carefully configured permissions can significantly improve VPN security.
ZTNA takes a more restrictive approach by granting access to specific resources instead of assuming that an authenticated user should be trusted across a network. For example, if a sales employee only needs access to a customer relationship management platform, ZTNA can limit that employee’s connection to the approved application. The employee does not automatically receive access to unrelated internal systems.
This approach can reduce the potential impact of compromised credentials and limit opportunities for lateral movement. The CISA joint guide to modern approaches for secure network access discusses the security advantages of modern access approaches, including granular access policies and reduced exposure of internal resources.
For most mid market businesses, ZTNA offers a stronger foundation for application level access control. However, the technology still needs proper configuration, monitoring, identity management, and endpoint security to deliver its intended benefits.
Performance and User Experience for Remote Employees
Remote access should protect business systems without making everyday work unnecessarily difficult.
Traditional VPNs can introduce performance challenges when large numbers of employees connect through a central office gateway. If traffic from cloud applications is routed through the corporate network before reaching its destination, employees may experience slower connections and additional network latency.
This can become particularly noticeable when employees regularly use cloud based productivity applications, video conferencing platforms, and large file sharing services. ZTNA can improve the experience by connecting users to specific applications through distributed access infrastructure. Depending on the provider and deployment architecture, employees may avoid routing all their traffic through a central corporate VPN gateway.
Another advantage is that employees can access the applications they need without establishing a broad network connection. However, ZTNA does not guarantee faster performance in every environment. Application hosting location, internet connectivity, provider infrastructure, device performance, and policy configuration all affect the user experience.
Businesses should evaluate actual application performance before selecting a solution. A network infrastructure strategy can help identify bandwidth limitations, connectivity problems, and infrastructure dependencies that affect remote employees.
Cost and Implementation Considerations for Mid Market Businesses
Cost is an important factor when comparing VPN vs zero trust network access. Mid market organizations often need stronger security but cannot justify unnecessary technology spending or complicated implementation projects.
VPN solutions may already be included in existing firewall platforms, network infrastructure, or security subscriptions. If a business has a relatively small remote workforce and a limited number of internal applications, continuing with an existing VPN may be a practical option.
However, VPN ownership involves more than the initial software or hardware purchase. Businesses must account for gateway maintenance, licensing, monitoring, security updates, capacity planning, troubleshooting, and employee support.
ZTNA may introduce additional licensing and implementation costs. Organizations may need to improve identity management, deploy application connectors, configure access policies, review application permissions, and integrate endpoint security controls.
Businesses should also consider the operational cost of security incidents. A solution that limits unnecessary access may reduce exposure to certain threats, although it cannot eliminate the risk of a breach.
Organizations evaluating their technology spending can benefit from reviewing fully managed IT services and IT services outsourcing. These approaches can help businesses understand which responsibilities should remain internal and which can be supported by an external IT provider.
When Should a Mid Market Business Choose a VPN?
A VPN can still be the right choice for businesses with established network infrastructure and specific connectivity requirements. For example, organizations operating legacy applications, internal databases, remote desktop environments, and on premises servers may require network connectivity that is difficult to replace immediately with application specific access.
VPNs can also be useful for site to site connections between offices, data centers, and certain cloud environments. At a minimum, businesses should implement multifactor authentication, restrict access based on job responsibilities, maintain current VPN software, monitor connection activity, and verify the security of remote devices. A well managed VPN environment should also include documented access procedures and regular reviews of employee permissions.
Businesses that need assistance maintaining existing infrastructure can explore remote infrastructure management services and business IT support services.
When Should a Mid Market Business Choose Zero Trust Network Access?
ZTNA is particularly attractive for organizations that want to provide remote access without exposing broad sections of their internal networks. It is often a strong option for businesses that rely on cloud applications, support hybrid employees, work with external contractors, or manage sensitive information across multiple locations.
Consider a professional services company with employees working from home, regional offices, and client locations. Different teams may use separate applications for accounting, project management, customer records, and internal collaboration. Rather than providing every employee with broad network access, the company can create application specific policies based on job responsibilities.
ZTNA can also support a gradual modernization of remote access. Businesses do not necessarily need to replace every VPN connection immediately. They can begin with applications that are suitable for ZTNA and migrate additional workloads as their infrastructure and policies mature. Microsoft provides an example through Microsoft Entra Private Access, which supports identity centric access to private applications across on premises and cloud environments.
Can Businesses Use VPN and ZTNA Together?
Yes. Businesses do not always need to choose one technology and eliminate the other. A hybrid remote access strategy can be a practical option for mid market organizations transitioning from traditional network security to a more application focused model. For example, employees may continue using VPN connections to access legacy systems, internal databases, or applications that require network level connectivity. At the same time, ZTNA can provide controlled access to cloud hosted applications and selected internal services.
This approach allows businesses to modernize gradually without disrupting essential operations. A hybrid model may also help organizations avoid rushing into a large infrastructure replacement project. IT teams can evaluate applications individually, identify access requirements, and determine which workloads are suitable for ZTNA.
However, operating both technologies requires clear management. Businesses should document which users rely on VPN, which applications are available through ZTNA, and how authentication and access policies are enforced across both environments. The transition should also include regular reviews of unused VPN accounts, outdated permissions, application exposure, and security configurations.
Organizations planning this type of transition should consider their wider cloud migration and security requirements before making major architectural changes.
How to Transition From VPN to Zero Trust Network Access
Moving from VPN to ZTNA should be treated as a structured IT modernization project rather than a simple software replacement. A rushed migration can disrupt employee workflows, create application compatibility problems, or introduce gaps in access control. Mid market businesses should follow a phased approach that considers existing infrastructure and business priorities.
1. Assess the current remote access environment
Start by documenting the existing VPN infrastructure, connected users, applications, network segments, and access permissions. Identify which employees need remote access and which systems they use.
This assessment should also identify outdated VPN accounts, excessive permissions, unsupported applications, and devices that do not meet current security requirements.
2. Identify applications suitable for ZTNA
Not every application needs to be migrated at the same time. Start with applications that employees access remotely and that can operate through application specific connectivity.
Cloud applications, web based business systems, and selected private applications may be suitable starting points.
3. Improve identity and authentication controls
ZTNA depends on reliable identity management. Businesses should establish strong authentication, multifactor authentication, role based permissions, and appropriate account lifecycle procedures.
Employees should only receive access to applications required for their responsibilities.
4. Evaluate device security requirements
A user account alone should not determine whether a connection is trusted. Businesses should consider device compliance, operating system updates, endpoint protection, encryption, and security monitoring.
Unmanaged or compromised devices may need restricted access.
5. Run a controlled pilot
Choose a small group of employees and applications for the initial deployment. Test authentication, application availability, performance, user experience, and security policies.
Collect feedback from employees and IT support teams before expanding the deployment.
6. Expand gradually and review access
After the pilot succeeds, migrate additional users and applications in stages. Maintain the VPN for systems that still require it, but remove unnecessary access as applications transition to ZTNA.
A reliable IT infrastructure management service can help coordinate this process, maintain system visibility, and reduce disruption.
Common Mistakes to Avoid When Choosing a Remote Access Model
Selecting a remote access solution without understanding business requirements can create unnecessary costs and security problems. One common mistake is assuming that a VPN is automatically secure because it encrypts network traffic. Encryption is important, but businesses must also manage authentication, endpoint security, access permissions, and network segmentation.
Another mistake is treating ZTNA as a complete cybersecurity solution. ZTNA can improve access control, but it does not replace endpoint protection, email security, backup systems, vulnerability management, employee training, or incident response. Businesses should also avoid migrating every application at once. Some legacy systems may require additional configuration or may not support the access model being introduced. Testing application compatibility is essential.
Ignoring employee experience is another problem. Remote access policies should protect company resources without creating unnecessary login interruptions or preventing employees from completing their work. Finally, organizations should avoid selecting technology based only on subscription price. The total cost includes implementation, administration, training, support, monitoring, and future scalability.
A dependable managed IT service provider can help evaluate these requirements and recommend an approach that aligns with the organization’s existing infrastructure.
How Stealth Technology Group Can Help Strengthen Remote Access Security
Choosing between VPN and ZTNA requires a clear understanding of how employees access business applications, where company data is stored, and which security controls are already in place. For mid market businesses, the right strategy may involve improving an existing VPN environment, implementing ZTNA for selected applications, or gradually transitioning toward a broader zero trust architecture.
Stealth Technology Group helps businesses improve their IT infrastructure, strengthen cybersecurity, and maintain reliable technology operations. Its approach to managed IT services can support organizations that need assistance with network management, endpoint security, remote access, monitoring, and ongoing IT maintenance.
Businesses can also benefit from IT consulting and managed services when evaluating technology investments and planning infrastructure improvements. Whether your organization is maintaining traditional VPN connections or considering a move toward ZTNA, the goal should be to provide employees with reliable access while limiting unnecessary exposure of business systems.
Conclusion: Choosing the Right Remote Access Strategy
The comparison of VPN vs zero trust network access comes down to how a business wants to manage remote connectivity and protect its applications. VPNs remain useful for organizations that need network level access, support legacy applications, or maintain established infrastructure. They can provide secure encrypted connections when properly configured and supported by additional security controls.
ZTNA offers a more application focused approach. It verifies users and devices, applies access policies, and limits connections to the specific resources employees need. This makes it particularly suitable for mid market businesses with distributed teams, cloud applications, and growing security requirements.
For many organizations, a hybrid approach may provide the most practical path forward. Businesses can retain VPN access where necessary while introducing ZTNA for applications that benefit from more granular access control. The important step is to assess the current environment before investing in new technology. A well planned remote access strategy should balance security, employee productivity, operational complexity, and long term business needs.
If your organization is reviewing its remote access security or planning a transition toward zero trust, contact Stealth Technology Group to discuss your IT requirements. You can also call (617) 903 5559 to learn how the right IT strategy can help protect your business and support its growth.
