VPN Security in Zero Trust Era
Traditional VPNs face challenges in modern security environments. This guide examines VPN security limitations and explores zero trust network access (ZTNA) as a modern alternative.
VPN Security Challenges
Traditional VPNs grant broad network access once authenticated. This approach conflicts with zero trust principles and creates security risks including lateral movement, compromised credentials, and limited visibility.
Zero Trust Network Access
ZTNA provides application-level access without exposing the broader network. Users authenticate to access specific applications, not entire network segments.
- Application-level access control
- No network-level access
- Continuous authentication
- Better performance and user experience
- Reduced attack surface
Migration Strategy
Migrating from VPN to ZTNA requires careful planning. Start with low-risk applications, gradually expand coverage, and maintain VPN during transition for legacy systems.
Securing Legacy VPN
If VPN remains necessary, strengthen security with MFA, split tunneling restrictions, regular credential rotation, and enhanced monitoring.
Conclusion
ZTNA provides superior security compared to traditional VPN. Organizations should plan migration to ZTNA while securing existing VPN infrastructure during transition.
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