SASE (Secure Access Service Edge)

The Changing Business World

Security solutions have been one of the top priorities for organizations for many years. However, these solutions were generally designed for an office-centered work structure. Today, the picture is very different. Employees can now connect to the system from home, via mobile devices, or from branches all around the world. Business processes are now carried out through cloud-based applications.

For example, according to a statistic from Rackspace’s 2025 State of the Cloud Report, 92% of workloads are now in the cloud, while only 8% remain on-premises. This clearly shows how rapidly the transition to cloud-based infrastructure has accelerated across different industries. This new reality requires a different approach to security. The most suitable solution for this new way of working is the Secure Access Service Edge, or SASE architecture, which combines security and networking under a single, cloud-based framework.

Key Highlights

• Unified Security: VPN, firewall, web filtering, and cloud access controls are managed from a single point.

  
  

• Access from Anywhere: Whether in the office, at home, or on a mobile device, employees receive the same level of protection wherever they are.

  
  

• Zero Trust Approach: Each access request is individually verified, minimizing security risks.

  
  

• Balance of Speed and Security: With SD-WAN integration, security is ensured without any loss of performance.

  
  

• Born-for-the-Cloud Architecture: Traditional solutions were adapted to the cloud later, whereas SASE was designed from the ground up for the cloud era.

  
  

Components of the SASE Model

• SD-WAN (Software-Defined Wide Area Network): Ensures performance for remote branches and users by directing traffic through the fastest and most secure routes.

  
  

• VPN (Virtual Private Network): Creates a secure communication tunnel, allowing users to connect to the corporate network via encrypted connections.

  
  

• SWG (Secure Web Gateway): Protects web traffic by preventing users from accessing malicious websites or content.

  
  

•  CASB (Cloud Access Security Broker): Enhances cloud security by providing data visibility and control over SaaS applications.

  
  

• FWaaS (Firewall as a Service): Provides a centralized firewall service through the cloud, blocking threats and attacks.

  
  

• ZTNA (Zero Trust Network Access): Verifies each access individually, allowing only authorized users to reach specific resources.

  
  

  SASE integrates all these components into a unified, cloud-based service.

Advantages

Cost Savings: SASE consolidates fragmented security solutions from multiple vendors under a single framework, eliminating the complexity of configuration and maintenance. Its cloud-based architecture simplifies updates, reduces operational costs, and allows teams to focus on more critical tasks.

Centralized Management: Enables policies to be managed from a single console across all users, branches, and cloud environments. This reduces security gaps, eliminates operational complexity, and allows IT teams to work more efficiently.

Performance and User Experience: SASE adds security layers without reducing connection speed. With SD-WAN integration, traffic is routed optimally, allowing users to enjoy fast and uninterrupted connectivity without compromising security.

In conclusion, in a world where 92% of workloads are cloud-based, employees work beyond office boundaries, and security threats are becoming increasingly complex, traditional solutions are insufficient. SASE, by unifying security and networking under a single framework, enables businesses to adapt to this new reality with confidence.