Remote and hybrid work have become the norm, reshaping how businesses think about security. In the past, Virtual Private Networks (VPNs) were the go-to solution for remote access. But as cyber threats grow more sophisticated, and employees work from multiple locations and devices, VPNs are showing their age.
Imagine this. At a financial firm, an analyst logs in from home through the company VPN to access a single reporting tool. Instead, they’re granted broad access across the network. With other colleagues connecting at the same time, performance slows. If that login were ever stolen, an attacker would get the same wide access, putting sensitive data at risk. Zero Trust Network Access (ZTNA) is a modern approach designed for the realities of today’s distributed workforce.
Why VPNs Are No Longer Sufficient
VPNs were built for a world where employees worked primarily from the office and occasionally connected from home or while traveling. They create a secure “tunnel” into a company’s network, but once inside, users have broad access to resources.
This model has serious drawbacks in the modern workplace:
- Overly broad access: VPNs often grant more network access than necessary, increasing the risk if an account is compromised.
- Performance issues: Routing all traffic through a central VPN server can slow down connections, especially for cloud applications.
- Scalability challenges: As more users connect remotely, VPN infrastructure can become a bottleneck, leading to downtime or degraded performance.
- Outdated trust model: VPNs operate on the assumption that if you’re on the network, you’re trusted, assumption attackers frequently exploit.
In short, VPNs no longer match the pace, scale, or threat landscape of today’s digital workplace.
Implementing ZTNA for Secure Access Anywhere, Any time
ZTNA takes a different approach: never trust, always verify. Instead of giving users the keys to the entire network, ZTNA only grants access to the specific applications and data a person needs and only after confirming their identity and device security posture.
Here’s how it works:
- Strong identity verification: Users authenticate through multifactor authentication (MFA), ensuring stolen passwords alone can’t be used to gain access.
- Least privilege access: Permissions are based on role, device, and context, minimising unnecessary exposure.
- Continuous monitoring: Access isn’t granted once and forgotten; user activity and device health are continuously evaluated.
- Direct-to-app connections: Users connect directly to the applications they need, without being placed on the broader network.
The result is secure, seamless access whether employees are at home, in the office, or working on the go.
ZTNA vs VPNs: A Clear Upgrade
When comparing ZTNA with legacy VPNs, the advantages are hard to ignore:
- ZTNA is cloud-native and scales easily as your workforce grows, unlike VPNs that require hardware expansion.
- VPNs grant broad network access. ZTNA enforces least-privilege access and continuous verification, reducing breach risks.
- VPNs often slow users down with awkward logins and slow connections. ZTNA delivers faster, more direct access to apps, improving productivity.
Move with Technology
As organisations continue to embrace remote and hybrid work, securing access to applications is key. While VPNs served their purpose for decades, they weren’t designed for the cloud-first, mobile workforce of today. ZTNA provides a more secure, scalable, and user-friendly alternative. By adopting ZTNA, businesses can protect sensitive resources while empowering employees to work from anywhere with confidence.
