A full-history analysis of the XRP Ledger has put hard numbers on a long-running, uncomfortable question: how vulnerable are today's accounts if powerful quantum computers one day can turn public keys into private keys?
The scan, run by dUNL validator Vet and posted on X, examined all 7,810,364 XRPL accounts. It found that 76.82 billion XRP is held in accounts whose public keys have already been revealed on-ledger by signed transactions — what Vet terms “quantum exposed.”
Vet stressed this is not an immediate operational alarm. Rather, it frames a future migration and governance challenge: once quantum-resistant cryptography is implemented, active users can move their funds into new, quantum-safe accounts, but dormant or otherwise immobile accounts may be left exposed. “What’s the problem with the Quantum threat that is so difficult to agree on how to solve?” Vet wrote. “People who can’t move their funds to a Quantum threat proof XRP account are at risk to have their funds stolen in a future with capable enough Quantum computers.”
Key definitions and headline numbers
- Quantum-exposed: an account that has ever submitted a signed transaction revealing its public key on-ledger. Accounts that have never signed a transaction have not exposed that public key and are treated as quantum safe under Vet’s framework.
- Total exposed supply: 76.82 billion XRP across roughly 5.6 million accounts (when dormancy is not considered).
- Active vs. dormant: Vet says about 96% of that exposed XRP is held by active accounts, which would likely migrate to quantum-resistant addresses when available.
- Dormant risk: accounts that are both exposed and dormant for at least five years hold 3.83% of all quantum-exposed XRP — equal to 2.94% of total XRP supply. The oldest cohort, accounts dating back to the ledger’s 2013 genesis year, represent 0.03% of exposed supply (0.024% of total supply).
- Dormant account counts: 1.33 million accounts fall into the five-year dormant & exposed bucket; ~15,000 belong to the 2013 dormant group.
How this stacks up against Bitcoin
Vet contrasted the XRPL picture with Bitcoin’s more-discussed edge cases, noting that XRP’s dormant exposure is “massively lower than Bitcoin,” where Satoshi-era unmoved coins and some early P2PK accounts total roughly 5% of BTC supply. That comparison highlights a broader point: the quantum debate is not merely technical, it’s social and governance-focused. If a protocol introduces quantum-safe account types, active users can rotate their funds — but networks must decide what to do about untouched holdings that cannot move.
Where safety already exists — and where it doesn’t
The scan also found that about 27% of XRPL accounts are already quantum safe, holding roughly 23.16 billion XRP. These include accounts that never signed (so never exposed their public key) and accounts that disabled their master key and now use a RegularKey or SignerList whose keys have not appeared on-ledger.
But Vet warned that complex wallets are not automatically immune. He found 242 multi-signature wallets holding 36.60 billion XRP — about 36.6% of total supply — where a quorum of signer public keys is already visible on-ledger. Large examples include some Ripple escrow distribution wallets. “So even sophisticated multi-sig setups aren’t automatically safe — they require disciplined signer-key rotation,” Vet wrote.
Operational nuance matters
A single-key account can remain quantum safe until it spends, because spending reveals the public key. Multi-signature arrangements can maintain safety depending on which signers’ keys are exposed and whether the exposed keys meet the signing threshold. Vet gives the example of a 4-of-8 SignerList with the master key disabled: if only three signers’ keys are visible on-ledger, the account can still be considered quantum safe because the exposed keys fall below the quorum.
Bottom line
Vet frames the dormant-exposure issue as a “litmus test for blockchains’ social layer.” The technical fix — quantum-resistant cryptography and account models — is straightforward in principle. The thornier questions are social and procedural: how to handle funds that cannot be migrated, whether protocol-level protections are appropriate, and what governance consensus will look like across communities.
At press time, XRP traded at $1.3758.
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