Solana Foundation says the network is secure against quantum threats

The quantum panic has reached Solana, and the Solana Foundation’s answer is calm: nobody needs to head for the bunker.

On October 8, 2026, Jacob Creech, Technical VP of the Solana Foundation, told users the network remains secure and can upgrade its cryptography to handle quantum computing and AI-accelerated attacks. His message: no “bunker mode” and no mass wallet migrations.

What Creech actually said

Creech’s argument rests on Ed25519, the signature scheme Solana uses to authorize transactions.

On Solana, signing keys are derived from a secret seed, and that seed is never exposed on-chain.

If the underlying elliptic curve were compromised, only the derived key would be at risk, not the seed sitting behind it.

Whoever holds the seed can prove they are the legitimate owner, even if an attacker managed to forge the derived key.

A proof-of-concept that lets users verify seed ownership and move to a quantum-resistant scheme has been developed and open-sourced.

The Justin Drake warning that set this off

Creech was responding directly to Ethereum researcher Justin Drake. Drake had warned that the crypto industry needs to prepare for a possible breach of ECDSA before “q-day.”

Q-day is the industry’s shorthand for the moment quantum computers become capable enough to break today’s widely used cryptography. ECDSA is one of the signature schemes that would be exposed when that happens.

Drake’s concern sits alongside a newer worry: that AI could speed up attacks on elliptic curve cryptography.

Solana has been working on this for a while

The Winternitz Vault has offered quantum-resistant protection since at least January 2025. Winternitz signatures are hash-based, an approach that does not lean on the elliptic curve math quantum machines are expected to threaten.

In late 2025, Solana partnered with Project Eleven on a quantum threat assessment.

In April 2026, client teams Anza and Firedancer selected Falcon as their post-quantum signature scheme. Falcon is aligned with standards from NIST, the US agency that has been steering the global shift toward quantum-resistant cryptography.

The foundation has also run post-quantum signature testnets, letting developers test the new cryptography without touching live user funds.

Why the seed design is the real story

Because the seed stays off-chain, it acts as a second, hidden form of identification that a quantum attacker on the curve would not automatically have.

That is why Creech can argue against panic moves like mass wallet migrations. A rushed migration carries its own risks: congestion, user mistakes, and plenty of opportunities for phishing scams posing as “official” upgrade tools.

Still, a proof-of-concept is not a deployed feature. The open-sourced code shows the path exists, but it has not yet been turned into a finished, network-wide process users rely on.

What this means for Solana and the wider market

Solana now has several concrete items to point to: an outside threat assessment, a NIST-aligned scheme chosen by two client teams, testnets, a working vault, and open-sourced migration code.

Execution remains the open question. Choosing Falcon and publishing a proof-of-concept are early steps, and a full cryptographic transition across a live, high-throughput network is a much heavier lift.

Things to watch include whether the seed-ownership migration tool moves from proof-of-concept toward production, and how Falcon testing progresses.