Quantum Computing

The G7 urges states and companies to switch now to quantum-resistant cryptography. Its report of September 3, 2026, mentions neither bitcoin, nor exchanges, nor blockchain, but targets the component on which every wallet depends: the public key signature, which a sufficiently powerful quantum computer can break.

Ripple released a roadmap whose role is to make the XRP Ledger compatible with post-quantum signatures by 2028. Indeed, the project plans tests, a coexistence period between the old and new systems, as well as a global network migration. However, this protection is not yet activated on the main network. No computer is yet capable of calculating the private keys used to control XRP accounts.

Ethereum specialists issue the proposal to rebuild the contract that gives validators the ability to deposit their ETH. Their intention is to authorize new cryptographic systems to relinquish the BLS signatures currently used. Nearly 42.4 million ETH, valued at nearly 104 billion dollars, depend on this format. The project remains a working document. It does not choose any post-quantum algorithm and does not yet ensure network protection against any attack.

Peter Schiff believes that artificial intelligence threatens bitcoin by capturing capital, electricity, and data centers.

The quantum threat pushes Ethereum to reconsider its cryptographic choices. Poseidon, long considered as a hash function suitable for zero-knowledge proofs and the post-quantum era, has just been discarded by the network's researchers. Behind this change lies much more than an algorithm choice. Thus, Ethereum is revising the cryptographic foundations of its future architecture. A new approach now promises better performance, enhanced auditability, and safer integration. It remains to understand why Poseidon lost the race, what gains its replacement offers, and at what pace this transition could reach the network.

Quantum computing is no longer a theoretical threat to cryptos. As tech giants accelerate their advances, the cryptographic resistance of blockchains becomes an immediate issue for investors, financial institutions, and developers. Recent warnings from several major industry figures have reignited the debate over decentralized networks' ability to face this technological disruption. Amid technical disagreements, industrial urgency, and market concerns, the crypto ecosystem faces one of the greatest challenges in its history.

Researchers in post-quantum cryptography unveiled on July 29 a zero-knowledge proof system capable of protecting Bitcoin wallets without changing existing addresses. Signed by AmericanFortress, this breakthrough comes as the threat of Q-Day becomes clearer. A viable solution for the ecosystem?

9 giants of crypto and finance launch a consortium endowed with $15M to prepare Bitcoin for quantum computing. The details!

The inexorable advance of cutting-edge quantum computing poses an existential threat to blockchain security, forcing the ecosystem to revise its cryptographic foundations. Preserving inactive Bitcoin wallets against machines capable of breaking private keys is a critical priority. On July 16, Project Eleven unveiled a post-quantum cryptographic proof proposal to address the "Q-Day" challenge. By replacing signature validation with lineage verification, this protocol offers an unexpected safety net.

Ethereum changes course: Vitalik Buterin unveils a roadmap focused on quantum resistance. Read our full analysis.

Donald Trump signs two decrees to accelerate quantum computing in the United States. What this means for the crypto universe.

The National Cybersecurity Agency of France (ANSSI) has just laid the foundations for a mandatory transition to post-quantum cryptography, cementing a threat that many still thought was distant. This decision is crucial because it represents the tipping point between theoretical research and legal obligation, requiring critical infrastructures and the crypto industry to hasten their own technological transformation.

The security of a blockchain relies on a simple promise: making the cost of an attack far greater than the expected benefit. This equation has held for over ten years thanks to cryptographic mechanisms considered solid. Yet quantum computing is beginning to shake everything up. The machines that could threaten bitcoin or Ethereum do not yet exist, but progress already made in this field forces developers to prepare for the future. A proposal presented by Nicolas Consigny, manager of the Kohaku project at the Ethereum Foundation, indicates that Ethereum could start protecting its accounts against quantum attacks today for a trivial amount: only 7 cents per account.

The digital asset industry is beginning to prepare for the arrival of quantum computing. This issue, still theoretical today, is nevertheless generating significant debates within the ecosystem. In this context, Coinbase is calling on developers to accelerate the necessary technical preparations. According to its advisory board dedicated to quantum, the transition must start immediately, especially to protect major networks like Bitcoin against future risks.

Bitcoin security has just received a new wake-up call. Microsoft unveiled Majorana 2, a quantum chip presented as a major advance towards quantum computers capable of solving problems currently beyond the reach of classical machines. While this innovation does not yet directly threaten the network created by Satoshi Nakamoto, it revives a question that has worried the crypto ecosystem for years: how long will the cryptography protecting bitcoin withstand the rise of quantum computing?

Glassnode sounds the alarm. More than 6 million bitcoins already show a potential exposure to future quantum attacks. Should the crypto market be worried?

Is the crypto apocalypse accelerating? The U.S. government just announced a historic $2 billion plan to fund quantum computing. We explain everything to you.

Satoshi Nakamoto's 84 billion Bitcoins are threatened by quantum computers. Paradigm has come up with a revolutionary solution: PACTs, anti-quantum protection without revealing identity. A major advance in Bitcoin security.

A researcher has just broken a 15-bit elliptic crypto key on a publicly accessible quantum computer, winning 1 Bitcoin. This breakthrough, 512 times more powerful than the previous one, does it threaten the security of Bitcoin and blockchains?

Quantum computing is shaking cryptocurrencies, but Bitcoin has a head start. According to Bernstein, the market has already anticipated this threat, and investors have 5 years to prepare.

The quantum timeline is tightening. Researchers at the California Institute of Technology estimate that a usable quantum computer could emerge before 2030. Such a projection disrupts established forecasts and revives questions about the security of cryptographic systems, including blockchains. As technical advances accelerate, the prospect of a shift is no longer distant.

At Ethereum, whales are stirring, traders are holding their breath, and crypto is already sniffing the storm: a strange comeback, with record leverage and a quantum future lurking everywhere.

Quantum threat to Bitcoin: Google sounds the alarm with a 2029 deadline. What changes for crypto investors.

Quantum scares, bitcoin falls. But devs work, seed phrases save, and 1.7 million BTC sleep. The real question lies elsewhere.

Digital asset manager CoinShares has played down concerns that quantum computers could pose a near-term threat to Bitcoin, arguing that only a small portion of coins are realistically exposed to such attacks. While fears around quantum technology have fueled market anxiety in recent months, the firm says current risks remain largely theoretical and far from actionable.

While quantum computers sharpen their circuits, Ethereum brings out the heavy artillery: cryptographers, millions, and devnets. The blockchain wants to last a hundred years, even if it ages before us.

Coinbase is forming an expert panel to tackle future quantum threats and strengthen blockchain security before the technology becomes a real risk.

Wall Street panics its block: Jefferies trades bitcoin for bullion. Reason? Quantum computers, these little geniuses capable of cracking digital vaults.