Zero trust network access (ZTNA) is a group of technologies and functionalities to provide secure access to applications and data. This remote access technology provides user access to corporate apps, whether they are on-premises, hosted in the cloud, or delivered as SaaS.
Unlike traditional VPNs, ZTNA provides access only at the application layer to reduce risk and prevent lateral movement on the corporate network. Access is provided on a need-only basis based on identity and context, and user sessions are continuously monitored to reduce the risk of unauthorized access.
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Unlike network-centric solutions such as virtual private networks (VPNs), which create an exploitable attack surface, ZTNA technology provides secure access to specific applications—instead of a company’s entire network. These security solutions work based on four core principles:
ZTNA services apply these principles through several methods:
Zero trust network access provides several security benefits for organizations. Some reasons to consider implementing a ZTNA solution include the following:
See why ZTNA is essential for securing the modern workplace—and get insights for evaluating ZTNA vendors.
Traditionally, many companies have used VPNs and firewalls to protect their resources from unauthorized remote access. However, these solutions cannot meet the modern requirements of hybrid and remote workforces.
A VPN has several limitations:
ZTNA includes several advantages over traditional VPN including:
Traditional VPN solutions are not well suited for cloud deployments. They require securing the remote access of every user through software and hardware-intensive VPN devices. Zero trust network access instead reduces network complexity, latency, and cost by delivering direct-to-cloud access to applications and resources.
Traditional cybersecurity solutions use a broad perimeter-based approach. These methods make it possible for an attacker gaining access to the network to move laterally to sensitive data. Zero trust network access controls access based on the least privilege principle, verifying each connection request before authorizing access to the intended resource.
The main use for ZTNA is to deliver granular access based on a user’s identity and context. ZTNA enables you to set specific remote access control policies based on user device or location.
As more applications move to the cloud, the need to secure access across different environments has increased. Zero trust network access secures access to applications and resources, whether they’re stored on-premises or in public, private and multi-cloud environments There are many solutions available, but they are not all the same. Here are six factors you should consider when choosing a ZTNA service provider:
With Citrix, you can deliver secure access to managed, unmanaged, and BYOD devices alike—without compromising the end user experience. Citrix Secure Private Access provides adaptive access to all corporate applications, whether they’re deployed in the cloud or an on-premises datacenter. This cloud-based ZTNA solution provides access only at the application level, allowing you to strengthen your security posture and prevent common VPN issues such as network-level attacks.