In today’s digitally connected world, universities and schools face increasing pressure to protect sensitive data, ensure uninterrupted access to online learning platforms, and support an increasingly remote and mobile user base.
Traditionally, many educational institutions have relied on Virtual Private Networks (VPNs) to secure access to internal resources. However, legacy VPN tools are rapidly becoming obsolete in the face of evolving cyber threats and user demands. Zero Trust Network Access (ZTNA) offers a modern alternative that not only enhances security but lays the foundation for a broader Security Service Edge (SSE) strategy.
This article explores why it’s imperative for educational institutions to move away from legacy VPN tools, examines the risks and compromises associated with their continued use, and explains why ZTNA is only the beginning of a broader journey toward SSE.
The Growing Risks of Legacy VPN Tools in Education
Legacy VPNs were designed during a time when most users and data were on-premises. Their purpose was to extend the internal network to remote users by creating a secure tunnel. While this approach worked for decades, today’s hybrid learning environments and cloud-based resources render VPNs an inadequate solution.
Here are the core risks associated with legacy VPNs:
1. Overly Broad Access: VPNs typically grant users wide access to the network once authenticated. This broad trust model exposes internal systems to lateral movement by malicious actors in case of credential compromise.
2. Credential-Based Attacks: VPNs are highly susceptible to credential theft and reuse attacks. Compromised credentials can lead to full network access, as seen in numerous ransomware and data breach incidents targeting educational institutions.
3. Lack of Visibility and Control: VPNs provide little granularity in access policies. Administrators struggle to monitor user behavior or restrict access to specific applications, leading to blind spots in the network.
4. Performance and Scalability Issues: With the surge in remote learning, traditional VPN infrastructure often becomes a bottleneck. The need for centralized traffic routing back to campus results in latency and degraded user experience.
5. Maintenance Overhead: VPN appliances require constant patching and maintenance. They also often represent single points of failure, making them unreliable during periods of high demand.
6. Compliance Challenges: VPNs do not natively support strong identity verification, auditing, or least-privilege principles, all of which are critical for compliance with regulations like FERPA, GDPR, and NIS2.
These limitations are not hypothetical. In recent years, schools and universities have experienced damaging cyberattacks that exploited weak VPN implementations, leading to compromised student records, interrupted operations, and reputational harm.
The Shift to Zero Trust Network Access (ZTNA)
ZTNA fundamentally changes the approach to secure remote access. Rather than extending the network perimeter to users, ZTNA shifts to a model where access is granted on a per-application, per-user basis, with strict verification at every step.
Key Features of ZTNA Include:
- Least Privilege Access: Users only access the specific applications and data they are authorized for—nothing more.
- Identity and Context Awareness: Decisions are based on user identity, device posture, location, and risk signals.
- Continuous Verification: Trust is never assumed; authentication and authorization are continuously enforced.
- Cloud-Native Architecture: ZTNA solutions are built for scale and geographic distribution, ideal for global student and faculty access.
By adopting ZTNA, educational institutions significantly reduce the attack surface. Even if credentials are compromised, attackers cannot move laterally across the network. Furthermore, ZTNA supports modern cloud and SaaS applications that form the backbone of today’s educational environments.
ZTNA adoption is growing rapidly across higher education, especially as schools confront increased threats from phishing, ransomware, and supply chain attacks. But while ZTNA is a critical step, it is not the final destination.
ZTNA as the Gateway to Security Service Edge (SSE)
ZTNA lays the groundwork for broader transformation via the SSE framework. Security Service Edge, a subset of the Secure Access Service Edge (SASE) architecture, integrates network security functions into a unified, cloud-delivered platform.
Beyond ZTNA, SSE typically includes Secure Web Gateway (SWG), Cloud Access Security Broker (CASB), and Data Loss Prevention (DLP).
For educational institutions, adopting SSE means:
Protecting Internet and SaaS Access: While ZTNA secures internal application access, SWG and CASB protect users when they browse the internet or use cloud applications like Google Workspace, Microsoft 365, Zoom, and Canvas.
- Unified Policy Enforcement: SSE platforms enable consistent security policies regardless of user location or device.
- Threat Prevention: Real-time traffic inspection, malware scanning, and behavioral analytics help detect and block threats before they reach the endpoint.
- Data Security: DLP capabilities prevent accidental or malicious data leakage, a crucial need for safeguarding student and research data.
With SSE, institutions gain a comprehensive security posture that meets the demands of the modern educational environment, which is increasingly cloud-first, remote-enabled, and regulation-bound.
Benefits of SSE: Reduction in Legacy Tools and Operational Simplicity
One of the most compelling reasons for educational institutions to embrace SSE is the opportunity to streamline their security infrastructure. Today, many schools run a patchwork of legacy tools, including VPNs, firewalls, proxies, and endpoint protection, often from different vendors. This complexity creates gaps in visibility, inconsistent policies, and excessive operational burden.
An integrated SSE platform brings the following benefits:
1. Tool Consolidation: SSE reduces reliance on hardware appliances and point solutions. ZTNA, SWG, CASB, and DLP are delivered via a single cloud-native platform.
2. Operational Simplicity: Centralized management reduces administrative overhead, making it easier to monitor security events, manage users, and enforce policies.
3. Improved Visibility: A unified dashboard provides end-to-end visibility into user activity, application usage, and threat posture.
4. Enhanced User Experience: Traffic is routed through globally distributed points of presence, reducing latency and improving performance for students and staff, no matter where they are.
5. Rapid Incident Response: With integrated telemetry and analytics, security teams can quickly detect and respond to incidents without switching between tools.
6. Scalability and Resilience: As cloud-native services, SSE platforms easily scale to meet fluctuating user demands without compromising availability or performance.
For schools and universities operating with limited IT staff and budgets, these efficiencies are game-changing. They enable institutions to do more with less while significantly elevating their security posture.
Conclusion: The Future of Cybersecurity in Education is Cloud-Delivered and Zero Trust-Aligned
The traditional perimeter-based approach to network security is no longer viable in the education sector. VPNs, once the go-to solution for remote access, now pose more risk than benefit. As cyber threats become more sophisticated and education becomes increasingly digital, institutions need to rethink their security architectures.
Zero Trust Network Access is a vital first step on the path to a more secure, resilient, and flexible future. By extending this approach through the full Security Service Edge framework, schools and universities can protect their users across every access point, whether internal, on the internet, or in the cloud.
ZTNA and SSE aren’t just technologies; they represent a strategic shift in how educational institutions think about access, identity, and data security. In an era where every student and staff member is a digital citizen, that shift has never been more urgent—or more necessary.
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