Cloudflare Follows Google, Sets 2029 Deadline To Go Quantum-Proof

Cloudflare announced Tuesday it will make its entire platform quantum-resistant by 2029, setting an aggressive deadline that underscores growing fears about quantum computing threats to Bitcoin (BTC) and internet security alike.

Cloudflare's Post-Quantum Roadmap

The web infrastructure giant disclosed the accelerated timeline in a blog post, saying it is focusing first on post-quantum authentication. Compromised authentication keys, the company warned, could let attackers impersonate servers, gain unauthorized access or push malicious software updates.

Sharon Goldberg, Cloudflare's senior director of product management, said the authentication upgrade is harder than encryption.

"With post-quantum encryption upgrades to TLS, we only need to upgrade the TLS client and the TLS server," she said.

The move follows Google's announcement last month that it also plans to be quantum-resistant by 2029. Research from Google and IBM now suggests "Q-Day" — when a quantum computer can crack current cryptography — could arrive as early as 2032.

Cloudflare said over 65% of human traffic to its network already uses post-quantum encryption. The rollout plan starts with origin connections in mid-2026, expands to visitor connections in mid-2027 and reaches full deployment by 2029.