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Comparing Security Frameworks: ZTNA vs SASE

  • 10 Jun 2024
  • 3 min read

In today's rapidly evolving digital landscape, securing network infrastructure is more crucial than ever. Enter SASE and ZTNA, two cutting-edge frameworks reshaping how we protect our networks. SASE, a comprehensive cloud-native architecture, integrates network and security services to enforce consistent security policies across the board. 

Meanwhile, ZTNA, a key component of SASE, ensures secure application access through rigorous identity verification. This blog delves into the differences and synergies between SASE and ZTNA, highlighting how they collectively drive a more secure, flexible, and efficient network environment. 

What is Zero Trust Network Access (ZTNA)?

ZTNA, or Zero Trust Network Access, is a security approach that ensures only verified users and devices can access specific applications or data. Unlike traditional security models that assume everything inside a network is trustworthy, ZTNA continuously checks each user's identity and device security status before granting access. This means that even if a user is within the network, they must still be authenticated and authorized for every resource they try to access. ZTNA helps organizations protect sensitive information by limiting access strictly to what each user needs, reducing the risk of unauthorized access and data breaches.

What is SASE?

SASE, or Secure Access Service Edge, is a security framework that combines networking and security services into a single cloud-based solution. It provides consistent security policies and controls across the entire network, regardless of where users or devices are located. SASE integrates various security functions like firewall, secure web gateway, and zero trust network access (ZTNA) to ensure comprehensive protection. This makes it easier for organizations to manage security and network performance, especially with the increasing demand for remote work and cloud services.

What Are the Differences Between SASE and ZTNA?



SASE (Secure Access Service Edge)

ZTNA (Zero Trust Network Access)


Comprehensive security and networking framework

Specific component of security focused on access control


Combines multiple security services (e.g., firewall, secure web gateway)

Provides secure access to applications based on identity verification


Cloud-native architecture

Can be implemented independently or as part of SASE

Security Coverage

Broad, across the entire network

Fine-grained, specific to applications and resources

Policy Enforcement

Consistent security policies across the network

Role-specific access control policies

Use Case

Ideal for comprehensive network and security management

Ideal for securing application access


Supports remote work and cloud services broadly

Focuses on secure access for users and devices


Includes ZTNA, SD-WAN, firewall, secure web gateway, etc.

Part of the broader SASE framework

What Are the Similarities Between SASE and ZTNA?

SASE and ZTNA are both focused on improving network security by controlling access to resources. They both operate on the principle of not automatically trusting users or devices, instead verifying their identity and security status before granting access. Additionally, both frameworks support the modern needs of remote work and cloud services, ensuring secure connections regardless of location. By integrating security measures and policies, SASE and ZTNA help protect sensitive information and reduce the risk of cyber threats.

Why ZTNA with SASE?

Using ZTNA with SASE combines the strengths of both frameworks to provide a comprehensive security solution. ZTNA ensures secure, identity-based access to specific applications, while SASE offers a broader security and networking framework that applies consistent policies across the entire network. Together, they enhance security by verifying every user and device, protecting against threats, and supporting the needs of remote work and cloud services. This combination ensures that organizations can manage and secure their networks more effectively and efficiently.

Benefits of Adopting SASE and ZTNA

Adopting SASE and ZTNA offers several key benefits for organizations:

  1. Enhanced Security: By combining the comprehensive security capabilities of SASE with the identity-based access control of ZTNA, organizations can significantly improve their overall security posture. This approach ensures that only authenticated and authorized users and devices can access network resources, reducing the risk of data breaches and cyber attacks.
  2. Simplified Management: SASE and ZTNA streamline security and networking functions into a unified, cloud-native architecture. This simplifies management by providing a single platform for implementing and enforcing security policies across the entire network, regardless of location or device type.
  3. Improved Performance: SASE optimizes network performance by dynamically routing traffic through the most efficient pathways and applying security measures closer to the edge. This reduces latency and ensures a seamless user experience, even for remote workers accessing cloud-based applications.
  4. Flexibility and Scalability: Both SASE and ZTNA are designed to be scalable and flexible, allowing organizations to adapt to changing business needs and network demands. Whether scaling up to accommodate growth or scaling down to adjust to fluctuations in usage, these frameworks provide the agility needed to support evolving business requirements.
  5. Cost Savings: By consolidating security and networking functions into a unified platform, SASE and ZTNA can help organizations reduce hardware and maintenance costs associated with managing multiple point solutions. Additionally, cloud-based deployment models eliminate the need for expensive on-premises infrastructure, further lowering operational expenses.

SASE and ZTNA: Some Key Statistics


  1. 75% of respondents have deployed secure web gateways (SWGs) as part of their SASE solution.
  2. Cloud access security brokers (CASBs) are implemented by 72% of organizations for SASE deployment.
  3. 63% of respondents use next-generation firewalls (NGFWs) as part of their SASE framework.
  1. 67% of organizations have implemented zero-trust network access (ZTNA) solutions.
  2. Multi-factor authentication (MFA) deployment has increased from 23% in 2021 to 52% in 2023 for ZTNA.
  3. Network access control (NAC) solutions are deployed by 70% of respondents for ZTNA implementation.

How PureDome Helps?

PureDome helps organizations harness the benefits of adopting SASE and ZTNA by providing a comprehensive security solution tailored to their needs. With PureDome, businesses can seamlessly integrate SASE and ZTNA into their network infrastructure, ensuring robust protection against cyber threats while optimizing performance and scalability. 

PureDome's user-friendly interface simplifies management tasks, allowing organizations to enforce security policies effectively and efficiently across the entire network. Additionally, PureDome offers ongoing support and updates to ensure that organizations stay ahead of evolving security challenges and maintain a secure and resilient network environment.

Frequently Asked Questions
What is the difference between ZTNA and SASE?

ZTNA focuses on secure application access, while SASE is a broader security and networking framework.

Why combine ZTNA with SASE?
Combining ZTNA with SASE provides comprehensive security coverage across the network.
How does PureDome assist in adopting SASE and ZTNA?

PureDome helps seamlessly integrate and manage SASE and ZTNA, ensuring robust protection and simplified management.