A new Google research paper is raising concerns about quantum threats to blockchain systems, and the XRP Ledger enters the discussion amid its early steps toward post-quantum security.
Notably, the study was led by Google Quantum AI with help from academic researchers and the Ethereum Foundation. It warns that future quantum computers could break current cryptography much sooner than expected.
Key Points
- A Google Quantum AI-led study warns quantum computers could break blockchain cryptography sooner than expected.
- The research shows that elliptic curve cryptography used by Bitcoin and Ethereum may be cracked in minutes.
- It highlighted XRP Ledger for early post-quantum efforts, including key rotation and ML-DSA testing.
- The report stresses urgency as blockchains secure more value, with XRP Ledger active in tokenized assets.
Quantum Threats Could Arrive Faster Than Expected
According to the paper, advances in quantum computing could make it much easier to break elliptic curve cryptography, which blockchains like Bitcoin and Ethereum rely on.
The researchers believe a powerful enough quantum computer could carry out these attacks in minutes, possibly exposing transactions while the network is still processing them. This creates a risk of “on-spend” attacks, where the system intercepts transactions before the network completes them.
Notably, they shared these findings using zero-knowledge proofs, which allowed them to prove the risk without revealing sensitive details about how the attacks would work.
XRP Ledger’s Early Moves Toward Quantum Resistance
As part of this analysis, the paper mentions the XRP Ledger for its ongoing experiments with post-quantum cryptography. Community figures, including XRPL validator Vet, pointed to developments such as:
- A test environment for quantum-resistant algorithms
- Built-in key rotation at the protocol level
- Early testing of post-quantum ML-DSA signatures
The paper confirms these experiments, showing that XRP Ledger is one of the few blockchains already working on quantum-resistant technology.
Wow!! Today is Quantum Day! Google released new research on Quantum risk in Blockchains.
Highlighting XRP and its efforts multiple times. Here are the findings and why especially Bitcoin:
>Denis testnet of the XRP Ledger with full quantum proof algorithms.
>XRP's native key… pic.twitter.com/FhrDT3dq7l
— Vet (@Vet_X0) March 31, 2026
Key Rotation and Structural Differences Matter
Furthermore, the report noted that some blockchains are more vulnerable due to their design. For example, networks like Solana and Ethereum may face higher risk over time. This is due to exposed public keys and older account structures.
The XRP Ledger differs in one key way: it supports built-in key rotation, meaning users can update their cryptographic keys without losing their accounts. This doesn’t fully solve the quantum threat, but it’s an important step toward future upgrades.
The paper also notes that blockchains handling smart contracts and tokenized assets carry more risk because they secure large amounts of value. The paper highlighted XRP Ledger as being increasingly used for real-world asset tokenization, including tokenized U.S. Treasury products.
Because of this growing use, there’s a greater urgency to adopt quantum-resistant security early.
Community Reaction: “The Future Is Being Built on XRP”
Following the publication, XRP community commentator Xaif described the findings as a validation of the network’s direction. He pointed out that research on quantum-resistant solutions have already begun citing XRPL, while many other blockchains are still in earlier stages.
Importantly, the study doesn’t say XRP boasts full protection against quantum threats yet. But it does highlight that post-quantum security is becoming a real priority, and some networks like XRP Ledger are already starting to prepare for it.
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