Post-quantum encryption for Cloudflare IPsec is generally available
2026-04-30
Cloudflare IPsec now has generally available support for post-quantum encryption via hybrid ML-KEM. We’ve confirmed interoperability with Cisco and Fortinet....
Post-Quantum
Cloudflare targets 2029 for full post-quantum security
2026-04-07
Recent advances in quantum hardware and software have accelerated the timeline on which quantum attack might happen. Cloudflare is responding by moving our target for full post-quantum security to 2029....
Bringing more transparency to post-quantum usage, encrypted messaging, and routing security
2026-02-27
Cloudflare Radar has added new tools for monitoring PQ adoption, KT logs for messaging, and ASPA routing records to track the Internet's migration toward more secure encryption and routing standards. ...
Cloudflare One is the first SASE offering modern post-quantum encryption across the full platform
2026-02-23
We’ve upgraded Cloudflare One to support post-quantum encryption by implementing the latest IETF drafts for hybrid ML-KEM into our Cloudflare IPsec product. This extends post-quantum encryption across all major Cloudflare One on-ramps and off-ramps....
Building a serverless, post-quantum Matrix homeserver
2026-01-27
As a proof of concept, we built a Matrix homeserver to Cloudflare Workers — delivering encrypted messaging at the edge with automatic post-quantum cryptography....
Policy, privacy and post-quantum: anonymous credentials for everyone
2025-10-30
The world is adopting anonymous credentials for digital privacy, but these systems are vulnerable to quantum computers. This post explores the cryptographic challenges and promising research paths toward building new, quantum-resistant credentials from the ground up....
State of the post-quantum Internet in 2025
2025-10-28
Today over half of human-initiated traffic with Cloudflare is protected against harvest-now/decrypt-later with post-quantum encryption. What once was a cool science project, is the new security baseline for the Internet. We’re not done yet: in this blog post we’ll take measure where we are, what we expect for the coming years, and what you can do today....
Keeping the Internet fast and secure: introducing Merkle Tree Certificates
2025-10-28
Cloudflare is launching an experiment with Chrome to evaluate fast, scalable, and quantum-ready Merkle Tree Certificates, all without degrading performance or changing WebPKI trust relationships....
Securing today for the quantum future: WARP client now supports post-quantum cryptography (PQC)
2025-09-24
To prepare for a future where powerful quantum computers come online, we've upgraded our WARP client with post-quantum cryptography....
Automatically Secure: how we upgraded 6,000,000 domains by default to get ready for the Quantum Future
2025-09-24
After a year since we started enabling Automatic SSL/TLS, we want to talk about these results, why they matter, and how we’re preparing for the next leap in Internet security....
You don’t need quantum hardware for post-quantum security
2025-09-19
Post-quantum cryptography protects against quantum threats using today’s hardware. Quantum tech like QKD may sound appealing, but it isn’t necessary or sufficient to secure organizations....
Prepping for post-quantum: a beginner’s guide to lattice cryptography
2025-03-21
This post is a beginner's guide to lattices, the math at the heart of the transition to post-quantum (PQ) cryptography. It explains how to do lattice-based encryption and authentication from scratch....
Conventional cryptography is under threat. Upgrade to post-quantum cryptography with Cloudflare Zero Trust
2025-03-17
We’re thrilled to announce that organizations can now protect their sensitive corporate network traffic against quantum threats by tunneling it through Cloudflare’s Zero Trust platform....
A look at the latest post-quantum signature standardization candidates
2024-11-07
NIST has standardized four post-quantum signature schemes so far, and they’re not done yet: there are fourteen new candidates in the running for standardization....
NIST’s first post-quantum standards
2024-08-20
NIST has published the first cryptographic standards for protecting against attacks from quantum computers. Learn what this means for you and your organization....
The state of the post-quantum Internet
2024-03-05
Nearly 2% of all TLS 1.3 connections established with Cloudflare are secured with post-quantum cryptography. What once was the topic of futuristic tech demos will soon be the new security baseline....
Post-quantum cryptography goes GA
2023-09-29
Cloudflare announces Post-Quantum Cryptography as a Generally Available system...
Cloudflare now uses post-quantum cryptography to talk to your origin server
2023-09-29
Starting today, you can secure the connection between Cloudflare and your origin server with post-quantum cryptography...
Cloudflare’s commitment to the 2023 Summit for Democracy
2023-03-28
Cloudflare is proud to participate in and contribute commitments to the 2023 Summit Summit for Democracy because we believe that everyone should have access to an Internet that is faster,...
No, AI did not break post-quantum cryptography
2023-03-16
The recent news reports of AI cracking post-quantum cryptography are greatly exaggerated. In this blog, we take a deep dive into the world of side-channel attacks and how AI has been used for more than a decade already to aid it...