Cloudflare Targets 2029 for Post-Quantum Security as AI Breaks Encryption Faster

Apr 27, 2026 · Updated May 6, 2026

Cloudflare, a global connectivity and security provider, set a 2029 target for full post-quantum security (cryptography resistant to quantum computer attacks). Engineers disclosed that AI is accelerating the timeline for breaking encryption standards like RSA and ECC. Research suggests the hardware threshold for a successful quantum attack is falling faster than previously forecasted.

The intersection of AI and cryptography creates an immediate "harvest now, decrypt later" risk for sensitive data. AI-driven techniques find efficiencies in mathematical models used to crack codes, lowering the qubits needed for a breakthrough. This mirrors the urgency seen in Chutes' post-quantum inference encryption for protecting AI workloads from future decryption.

You should begin auditing long-lived data assets—such as healthcare records—that must remain secure through the end of the decade. While Cloudflare is implementing edge protections, developers should prepare to transition local security stacks to post-quantum ready libraries. This move follows Cloudflare's anonymous credentials framework for robust cryptographic standards.

View the full update on blog.cloudflare.com

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@CloudflareApr 26

In case you missed this: AI could break today’s encryption sooner than expected. “It’s quite a shock,” says Cloudflare cryptography engineer Bas Westerbaan. (Also featuring Sharon Goldberg.) Cloudflare is targeting 2029 for post-quantum security. World Quantum Day special episode → https://t.co/rsr5kMrpOW

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Cloudflare has set a target of 2029 to achieve full post-quantum security across its global network. This timeline is an acceleration of previous estimates, driven by new research showing that AI can help break current encryption standards much sooner than experts originally anticipated.

AI is being used to find mathematical efficiencies in the algorithms required to crack standard encryption like RSA and ECC. By optimizing these processes, AI significantly reduces the number of qubits, or quantum bits, needed for a quantum computer to successfully decrypt data, effectively lowering the hardware requirements for an attack.

Post-quantum security refers to cryptographic methods designed to be secure against the unique processing power of quantum computers. Current encryption relies on math problems that are hard for today's computers but easy for quantum ones. Post-quantum algorithms use different mathematical foundations that remain difficult for both systems to solve.

Cloudflare engineers describe the situation as a shock because AI-driven cryptanalysis is advancing faster than expected. This acceleration shortens the window for organizations to transition to new security standards before quantum computers become capable of rendering today's most common encryption protocols obsolete and exposing sensitive long-term data.

The transition to post-quantum security at Cloudflare is being led by internal experts including cryptography engineer Bas Westerbaan and Sharon Goldberg. These specialists are focused on implementing new cryptographic standards across the network to defend against the accelerated threat posed by the intersection of artificial intelligence and quantum computing.