[DigitalToday reporter Yoonseo Lee (이윤서)] An assessment has found that most of XRP’s supply is not highly exposed to a theoretical quantum attack risk.

Cryptopolitan, a blockchain media outlet, reported on April 9 local time that about 300,000 XRP accounts with unrevealed public keys on-chain hold 2.4 billion XRP and were classified as “quantum safe”.

The key factor is whether the public key has been exposed. Quantum attacks assume keys are public. Accounts that have never transacted do not have known public keys, leaving no clue needed for an attack. That means they can remain protected without separate tools or upgrades.

The scale of exposure is also limited. The amount exposed to quantum risk was put at about 0.03 percent of total XRP supply. There are only 2 dormant whale accounts with exposed public keys, and their holdings total just 21 million XRP.

XRP Ledger (XRPL) is also preparing a post-response system alongside such structural strengths. Asset manager Grayscale mentioned XRPL’s advance response in a recent report. Developers are testing ML-DSA, an algorithm approved by the U.S. National Institute of Standards and Technology (NIST), in AlphaNet, a test environment. The development team is reviewing an upgrade that would enable key replacement and quantum-resistant transactions without disrupting the live network.

XRPL already supports key rotation. Users can replace signing keys without changing wallet addresses. If a hybrid approach combining existing cryptography and quantum-resistant cryptography is added, it can switch without security gaps while testing a new signature system. AlphaNet supports quantum accounts, quantum transactions and quantum consensus functions, and is testing asset custody, prevention of unauthorized access and secure communication among validators.

Cost burdens remain. Quantum-resistant signatures are about 40 times larger than existing signatures, taking up more storage space and slowing processing. Even so, engineers expect performance to improve over time and catch up with existing models.

In markets, such security preparations are tying in with buying. Whales began buying more than 11 million XRP a day after confirming the network’s preemptive response. With prices stabilising around $1.34 and selling pressure easing, large investors are moving XRP held on exchanges into private wallets.

Liquidity indicators also strengthened. XRP’s market capitalisation was put at about $84 billion, and trading volume was presented as having risen sharply. On the network side, dormant accounts were limited to 1.1 million out of 7.7 million total accounts, and most of these were tallied as small accounts holding only 10 to 20 XRP.

Ultimately, 2 points stand out. XRP has a high share of accounts that have not exposed public keys, limiting current quantum-risk exposure, while XRPL is building a long-term response system through key rotation and ML-DSA testing. It remains to be seen whether large investors’ buying and off-exchange wallet transfers continue in this trend.