XRP vs Bitcoin: Which Faces Bigger Quantum Computer Risks?

A fresh debate over quantum risk is splitting Bitcoin and XRP analysts, because the practical question is not whether either network is broken today but which wallets have already exposed the public keys that a future cryptographically relevant quantum machine could target.

What to Know About Quantum Risk for Bitcoin and XRP

Vet’s April 7, 2026 post said roughly 300,000 accounts on XRP holding 2.4B XRP have never transacted, which means their public keys remain unknown under his wallet audit. In the same thread, he said only two larger dormant accounts holding 21M XRP have exposed public keys after more than five years of inactivity.

Quick XRP acc quantum vulnerability check.

~300,000 accounts on XRP holding 2.4B XRP never transacted, thus public key unknown and quantum safe.

while only 2 accounts with larger holdings of 21M XRP are dormant (inactive over 5 years) and have their public key exposed.

Dormant…

— Vet (@Vet_X0) April 7, 2026

U.Today’s follow-up said those dormant exposed balances account for about 0.03% of XRP’s supply. That 0.03% figure suggests the current XRP discussion is concentrated in a thin slice of inactive wallets rather than in accounts whose public keys have never appeared on-ledger.

Chaincode’s Bitcoin Post Quantum paper takes a broader view and estimates that about 6.26 million BTC, or roughly $650 billion in the paper’s framing, could be stolen by cryptographically relevant quantum computers. The same paper also says no quantum computer today poses an immediate threat to Bitcoin.

The side-by-side verdict is still conditional, because Vet’s wallet audit and Chaincode’s script-type model are measuring different kinds of exposure rather than producing a single like-for-like benchmark.

Why Experts Compare Bitcoin and XRP Differently Under a Quantum Threat

Chaincode says Bitcoin outputs in P2PK, P2MS, and P2TR reveal public keys directly, and it adds that reused addresses with already exposed public keys also fall into the vulnerable set. Under that framework, the 6.26 million BTC estimate makes Bitcoin look more exposed today because a measurable share of coins already sits in script paths that disclose the key material an attacker would need.

XRP looks different because public keys are not revealed until an account sends its first outbound transaction, which is why Vet’s 2.4B XRP in never-transacted accounts points to a large pool that remains outside his immediate-risk bucket. That does not prove XRP is broadly quantum-proof; it means the exposure Vet counted is narrower at the wallet level than the Bitcoin exposure Chaincode counted at the script level.

The XRPLF standards discussion shows an active post-quantum migration path for XRPL, including Dilithium signatures, KeyType::dilithium = 2, and an lsfForceQuantum account flag. That proposal does not eliminate current wallet exposure, but it does give XRP a visible standards-track response that can be compared with Bitcoin’s still broader consensus challenge.

If “exposed” means balances with public keys that are already available to an attacker, the ~6.26 million BTC estimate is the larger measurable target. If “exposed” also includes whether a network has a named mitigation path in motion, the XRPLF Dilithium proposal gives XRP a clearer upgrade narrative than the available Bitcoin evidence in this brief.

Why the Quantum Debate Matters Now for Crypto Investors

Chaincode says expert expectations place cryptographically relevant quantum computers in the 2030-2035 window, and the paper ties that timeline to transition plans that deprecate vulnerable elliptic-curve standards by 2030 and disallow them by 2035. That makes this a preparation story, not a collapse-today story.

For investors, the practical issue is custody behavior and migration speed. Readers following speculative targets such as whether XRP can reach $1,000 by 2030 or promotion-led trading activity such as Zoomex’s $150,000 BTC airdrop campaign for new users are still dealing with a more basic security question: has a wallet already revealed its public key?

That operational burden could widen as standards tighten across the industry. Companies already navigating MiCA pressure in Europe offer a reminder that cryptographic migration is not only a protocol issue but also a custody, exchange, and compliance issue for firms holding long-dormant balances.

The narrow conclusion from the available evidence is that Bitcoin’s ~6.26 million BTC estimate points to the larger immediately measurable exposure, while Vet’s 21M XRP dormant-exposed figure and XRPLF’s Dilithium discussion point to a smaller exposed pool and a more visible mitigation track on XRP. That conclusion should still be read cautiously because it is inferred from three separate datasets rather than from a single study applying one method to both networks.

Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency and digital asset markets carry significant risk. Always do your own research before making decisions.