The Rise of Business VPNs and SASE: Securing the Evolving Enterprise Landscapeby@taiwosotikare
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The Rise of Business VPNs and SASE: Securing the Evolving Enterprise Landscape

by Taiwo SotikareApril 10th, 2024
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As businesses increasingly rely on cloud-based resources and remote workforces, the need for robust security solutions grows. This article explores Business VPNs and SASE (Secure Access Service Edge), comparing their functionalities, advantages, and limitations. While VPNs offer secure tunnels for remote access, SASE represents a next-gen, cloud-centric approach integrating various security functions. We analyze their roles, benefits, and ideal use cases to help businesses navigate the evolving landscape of enterprise security.
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This is 2024; businesses are increasingly reliant on cloud-based resources and remote workforces. This shift necessitates robust security solutions to safeguard sensitive data and access to critical applications. Two prominent technologies addressing these needs are Business VPNs (Virtual Private Networks) and SASE (Secure Access Service Edge). While VPNs have long been a cornerstone of enterprise security, SASE represents a next-generation approach that builds upon and expands the functionalities of VPNs.

This article delves into the rise of business VPNs and SASE, exploring their functionalities, advantages, and limitations. We'll also analyze how SASE is transforming the security landscape and its potential impact on the future of VPNs.

The Role of Business VPNs in Secure Access

A Business VPN establishes a secure tunnel between a user's device and a corporate network. This encrypted tunnel ensures that all data transmitted between the device and the network remains confidential, even over public Wi-Fi connections. VPNs provide several key benefits for businesses:

  • Remote Access: Business VPNs empower employees to securely access internal resources like file servers, applications, and databases from any location with an internet connection. This facilitates remote work arrangements and enhances business continuity.
  • Enhanced Security: VPNs significantly reduce the risk of data breaches and unauthorized access by encrypting data traffic. This is particularly important for businesses handling sensitive information.
  • Access Control: Granular access controls can be implemented through VPNs, allowing administrators to restrict access to specific resources based on user roles and permissions.

While Business VPNs offer a reliable security solution, they come with certain limitations:

  • Performance Bottlenecks: VPNs can sometimes introduce performance overhead due to the encryption and decryption processes. This can be particularly noticeable for bandwidth-intensive activities.
  • Scalability Challenges: Scaling a traditional VPN solution to accommodate a growing workforce or fluctuating network traffic can be complex and resource-intensive.
  • Limited Cloud Integration: Traditional VPNs are primarily designed for on-premises network access. They may not seamlessly integrate with the growing number of cloud-based applications and services businesses rely on.

SASE: A Cloud-Centric Approach to Secure Access

SASE (Secure Access Service Edge) is a cloud-based security framework that converges various network security functions into a single, unified service. These functions typically include:

  • Zero Trust Network Access (ZTNA): ZTNA replaces the traditional "castle-and-moat" security model by continuously verifying user identity and access permissions, regardless of location or device.
  • Cloud Access Security Broker (CASB): A CASB secures access to cloud applications by enforcing access controls, data security policies, and malware detection.
  • Secure Web Gateway (SWG): SWG filters web traffic, blocks malicious websites, and prevents malware downloads.
  • Firewall as a Service (FWaaS): FWaaS provides next-generation firewall functionality to inspect and filter network traffic for threats.

SASE offers compelling advantages over traditional VPNs:

  • Improved User Experience: SASE eliminates the need for complex VPN setups, simplifying access for remote users and enhancing their experience.

  • Enhanced Security: SASE's cloud-native design and ZTNA approach provide a more robust security posture with continuous user and device verification.

  • Scalability and Agility: The cloud-based nature of SASE enables effortless scaling to accommodate growing organizations and evolving security needs.

  • Unified Management: SASE offers a centralized platform for managing all network security functions, streamlining security operations and reducing administrative overhead.

  • Comprehensive Cloud Security: SASE integrates seamlessly with cloud applications and services, providing holistic security for the modern, cloud-centric enterprise.

However, SASE implementation requires careful consideration:

  • Vendor Lock-In: Reliance on a single SASE vendor can lead to vendor lock-in, potentially limiting flexibility and increasing costs.
  • Integration Complexity: Integrating SASE with existing security infrastructure can be complex and require specialized expertise.

The Evolving Landscape: VPNs vs. SASE

While VPNs have served businesses well for many years, SASE represents a paradigm shift towards a more comprehensive and adaptable security model. Here's a breakdown of their key differences:


Business VPN


Deployment Model

Primarily on-premises


Security Approach


Zero Trust Network Access (ZTNA)

User Experience

Requires manual configuration

Simplified, centralized access


It can be complex to scale

Effortless scaling

Cloud Integration


Seamless integration




When to Choose a Business VPN vs SASE

The decision between a Business VPN and SASE hinges on several factors specific to your organization's needs:

  • Security Requirements: A Business VPN may suffice if your primary concern is securing access to on-premises resources. However, for a more robust security posture with ZTNA and comprehensive cloud application protection, SASE is a clear choice.

  • Cloud Adoption: Businesses heavily reliant on cloud applications and services will benefit tremendously from SASE's seamless cloud integration. A VPN might be adequate for now if on-premises resources remain your primary focus.

  • IT Resources: Implementing and managing SASE requires some expertise in cloud security. If your IT team lacks the necessary resources, a Business VPN might be a more manageable option in the short term.

  • Scalability Needs: Businesses anticipating significant growth or fluctuating network traffic should prioritize SASE's effortless scaling capabilities. A VPN might be sufficient for a static network environment.

Here's a table summarizing the ideal use cases for each technology:

Use Case

Ideal Solution

Secure remote access to on-premises resources

Business VPN

Access control for cloud applications and services


Secure branch office connectivity

Business VPN (with potential migration to SASE in the future)

Zero Trust Network Access (ZTNA) implementation


Simplified security management for geographically dispersed teams


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The Future of Business VPNs and SASE

While SASE represents the future of secure access, Business VPNs are not likely to disappear entirely. Here's a glimpse into what the future holds:

  • Hybrid Approach: Many businesses will likely adopt a hybrid approach, leveraging Business VPNs for specific use cases while implementing SASE for broader cloud-centric security.
  • VPN Enhancements: Traditional VPN providers are likely to enhance their offerings to better integrate with cloud environments and offer improved performance.
  • SASE Adoption: As cloud adoption continues to accelerate, SASE is poised for widespread adoption across businesses of all sizes. The growing focus on zero-trust security principles will further fuel this trend.


In conclusion, Business VPNs and SASE are crucial in securing today's evolving enterprise landscape. Understanding their strengths, weaknesses, and ideal use cases empowers businesses to make informed decisions about their security architecture. As the digital landscape shifts towards the cloud, SASE is expected to become the dominant security solution for the modern, globalized workforce.

By proactively adopting cloud-based security solutions like SASE, businesses can ensure they have the agility and scalability necessary to thrive in the ever-changing digital age.