Quantum-safe virtual private networks require securing from quantum computing’s threat.  Not only are VPNs vulnerable, but much of the cryptographic infrastructure affiliated with the VPN.  The RSA cryptosystem and elliptic curve cryptographic methods will purportedly expose their weakness to quantum computing.  Both of these are used widely, VPNs are no exclusion.  This means data considered secure today, if captured today, stands to be decrypted at the advent of sufficiently strong quantum computers.  The transition of VPNs to quantum-safe solutions is deemed “extremely complex.”  The complexity demands government, academia, and industry to get started in planning to secure their authentication and confidentiality of systems and data from the quantum computing revolution. 

Discussion found at TECHNUTER…

Full ETSI report [PDF] is here…