VPN Is Yesterday? Why Modern Remote Access Needs Zero Trust
In a working world where employees operate flexibly from the office, home, or on the go, secure remote access has long become business-critical. For many years, traditional VPN solutions were the standard. They connect external users to the corporate network and enable access to internal systems, applications, and data.
However, the requirements have changed.
Cyberattacks are becoming more targeted, identities are more frequently compromised, and corporate networks are more complex than ever. What was once considered a secure bridge into the company network can now become a risk itself.
This is exactly where Zero Trust Network Access (ZTNA) comes in.
What is a VPN?
VPN stands for Virtual Private Network. Simply put, a VPN creates an encrypted connection between a device and the corporate network. This allows employees to connect to internal resources from outside, such as file servers, business applications, or administrative systems.
For home office setups, remote locations, or mobile employees, VPN has long been an obvious solution. Once logged in, the user is often technically inside a protected network segment.
The problem: this model relies heavily on trust.
Anyone who successfully logs in often gains broad access to network areas that are not actually necessary for their tasks. If a user account is compromised, this can quickly turn into a serious security risk.
Where are the risks of traditional VPN solutions?
Traditional VPN architectures operate on a simple principle: anyone who authenticates is allowed into the network. In modern IT environments, that is no longer sufficient.
The biggest risks include:
The reality: security must be more granular today
Modern companies no longer operate within a clearly defined network boundary. Data resides in local systems, private clouds, SaaS applications, and hybrid infrastructures. Employees access business-critical information from various locations and devices.
At the same time, attacks on identities, remote access points, and poorly secured interfaces continue to increase. A single compromised account can be enough to open doors that should remain closed.
The key question is no longer:
“How do we securely bring users into the network?”
But rather:
“How do we enable exactly the access that is truly needed and nothing more?”
The solution: Zero Trust Network Access
Zero Trust Network Access takes a different approach from traditional VPNs. Its core principle is:
Never trust automatically. Always verify. Allow only what is truly necessary.
ZTNA does not connect users broadly to the entire network. Instead, every access request is evaluated based on context. Access to a specific application or resource is granted only if identity, device, policies, and security posture meet the requirements.
NIST describes Zero Trust as an architecture where access rules are defined as granularly as possible to grant only the minimum necessary privileges. The CISA Zero Trust Maturity Model is also built on key pillars such as identity, devices, networks, applications, and data.
How ZTNA minimizes risks
ZTNA does not simply replace remote access, it makes it smarter, more controlled, and more secure.
Access only for verified users
Every login is validated. Identity, authentication, and role determine whether access is granted. Combined with multi-factor authentication, the risk of stolen passwords is significantly reduced.
Device posture is evaluated
Not only the user matters, but also the device. Is it known? Is it up to date? Does it meet security requirements? Only trusted devices are granted access.
Access to applications, not networks
ZTNA does not automatically grant access to the entire corporate network. Users receive access only to the applications they need for their work, significantly reducing the attack surface.
Granular policies instead of broad tunnels
Permissions can be defined per user, role, device, location, or application. This creates control and reduces unnecessary privileges.
Greater transparency and traceability
ZTNA provides better visibility into who accesses which resources and when. This supports audits, compliance, and security analysis.
How BWO Systems AG enhances security with ZTNA
BWO Systems AG helps organizations rethink remote access securely, in a controlled manner, and aligned with their existing IT environment.
Instead of introducing isolated standard solutions, BWO considers the entire security architecture: identities, devices, networks, applications, data, and operational requirements. The result is a solution that not only works technically but also proves effective in daily operations.
With ZTNA, BWO Systems AG helps companies to:
The focus is not just on technology, but on tangible business value: more security, less complexity, and an improved user experience.
Security without compromising flexibility
Modern work requires flexible access. However, flexibility must not mean that security boundaries become blurred.
ZTNA creates this balance: employees gain simple access to the resources they need, while the organization retains control over who can access what, when, and from which device.
This transforms remote access from a vulnerability into a secure component of the digital workplace.
Conclusion: From network access to intelligent access control
VPN was long the right answer to secure remote access. But the threat landscape, working models, and IT environments have evolved.
Today, solutions are needed that verify identities, assess devices, limit access, and provide transparency.
Zero Trust Network Access is the next logical step.
BWO Systems AG supports companies on this journey with Swiss IT expertise, a holistic security approach, and solutions that combine security, efficiency, and usability.
BWO Systems AG – your partner for secure, modern, and future-ready remote access.
Do you have questions about VPN, Zero Trust, or secure remote access in your organization?
Contact us. We will show you how to make your access more secure, transparent,and easier to manage.
