Cloud Load Balancing adds post-quantum key exchange
Google Cloud Load Balancing now supports post-quantum key exchange for Application Load Balancers and external proxy Network Load Balancers. This feature protects current traffic from future quantum decryption risks by enabling clients that support TLS 1.3 and X25519MLKEM768 to use post-quantum key exchange. The rollout occurs in three phases, with opt-in available now and enablement by default beginning October 2026.
Features (1) ›
- Cloud Load Balancing
TLS post-quantum key exchange support is now available for Application Load Balancers and external proxy Network Load Balancers. Post-quantum key exchange is essential for protecting today's traffic from future quantum computing decryption risks ( harvest now, decrypt later attacks). With post-quantum key exchange enabled, the load balancer uses post-quantum key exchange with clients that support TLS 1.3 and X25519MLKEM768 key exchange. This feature is rolling out in three phases: Phase 1 (Until October 2026): Post-quantum key exchange is not enabled by default. Customers can elect to opt in a
https://docs.cloud.google.com/release-notes#June_02_2026