A week-long coding challenge organized by StarkWare reduced the estimated computational cost for quantum-resistant Bitcoin transactions from approximately $320 to $66, an 80% reduction. AI-assisted developers achieved the breakthrough by optimizing GPU code.
Coinbase is building post-quantum custody infrastructure to protect digital assets against future quantum computing threats, with Head of Cryptography Yehuda Lindell outlining plans to support multiple signature schemes beyond traditional Multi-Party Computation methods.
A collaboration between Google Quantum AI, the Ethereum Foundation, and Stanford has published research showing optimized quantum circuits that reduce the resources needed for a key operation in potential quantum attacks on Bitcoin and Ethereum's cryptography, requiring only 1,151 logical qubits compared to previous estimates.
A crowdsourced challenge of over 100 researchers and AI agents reduced the quantum resource benchmark for a key operation in attacking Bitcoin and Ethereum by 86% in two months, requiring 1,151 logical qubits and 1.30 million T-gates.
The Ethereum Foundation's Protocol cluster published a roadmap setting December 2029 as a hard deadline for making Ethereum's base layer resistant to quantum computing attacks, covering consensus, execution, and networking layers.
The Ethereum Foundation has made quantum resistance its top priority, establishing December 2029 as a fixed deadline to protect the network's execution, consensus, and data layers before quantum computers could break current cryptography. The timeline is now constraining which features can be included in upcoming upgrades, including the Hegotá upgrade.
The Ethereum Foundation has made quantum resistance its top priority, establishing December 2029 as a fixed deadline to protect the network's execution, consensus, and data layers before quantum computers could break current cryptography. The timeline is now constraining which features can be included in upcoming upgrades, including the Hegotá upgrade.
Ripple has announced a comprehensive four-stage strategy to secure the XRP Ledger against quantum computing threats by 2028, responding to recent advances showing AI models can significantly weaken post-quantum cryptographic protections. The move comes as Bitcoin and Ethereum also published quantum migration plans this week.
Blockstream Research published a draft Bitcoin improvement proposal for SHRINCS, a hash-based post-quantum signature scheme relying only on SHA-256. The design targets roughly 3 transactions per second under the witness discount and would require a soft fork to activate.
Ethereum researchers submitted a draft proposal to overhaul the network's validator deposit contract to accept variable-length cryptographic keys, marking the first step toward protecting the staking system's $104 billion in locked ETH from potential quantum computer attacks.
The White House Office of Science and Technology Policy published an updated National Security Science & Technology Strategy, removing data centers, batteries, and augmented reality from the critical technology list while adding post-quantum cryptography, integrated photonics, and high entropy alloys. The revision reflects the Trump administration's evolving technology priorities with implications for military capabilities and China deterrence.
The Ethereum Foundation is moving away from the Poseidon hash function in its planned post-quantum architecture, with researcher Justin Drake announcing a shift to alternatives like SHA or BLAKE after proof systems changed the cryptographic tradeoffs.
Ethereum co-founder Vitalik Buterin released an updated roadmap on Monday that significantly elevates quantum safety and privacy as top priorities, while deprioritizing or dropping other initiatives like Verkle trees and state expiry in favor of alternative constructions.
Ethereum co-founder Vitalik Buterin has released an updated technical roadmap that elevates quantum-resistant cryptography and privacy features as top priorities, marking a significant shift from the network's 2023 development plan. The new roadmap also emphasizes native rollups and incorporates AI-assisted formal verification while downgrading or replacing some previous initiatives like verifiable delay functions.
BlackRock, Fidelity Digital Assets, Coinbase, Strategy, and other leading firms formed the Bitcoin Security Consortium, pledging $15 million over three years to fund Bitcoin security research, including post-quantum cryptography. The initiative follows Galaxy Digital's separate $5 million quantum readiness fund announced days earlier.
Galaxy Digital launched the Bitcoin Quantum Readiness Initiative, committing up to $5 million in developer grants for post-quantum cryptography solutions and establishing an advisory council to prepare Bitcoin for potential quantum computing threats.
Project Eleven unveiled an unaudited post-quantum zero-knowledge proof prototype designed to verify Bitcoin wallet ownership after Q-Day. Separately, Galaxy launched a quantum-readiness initiative on July 21 that includes up to $5 million in developer grants and a Quantum Advisory Council. Project Eleven's announcement came around the 16th anniversary of Satoshi Nakamoto's July 2010 forum post discussing a possible cryptographic upgrade path.
Quantum security startup Project Eleven has funded a proof that allows wallet owners to reclaim Bitcoin after quantum computers can forge signatures, using the wallet's key-derivation path as ownership proof. The tool runs in 243 milliseconds on a laptop.
Coinbase's quantum advisory council released a report urging cryptocurrency developers to begin post-quantum migration work immediately, highlighting the vulnerability of abandoned Bitcoin addresses and warning that handling these dormant coins could become a major challenge for the network.
As Bitcoin's price has plummeted from $126,000 to around $60,000, erasing over $1.2 trillion in market value, Citi analysts and industry experts are raising alarms about quantum computing vulnerabilities, with Stellar unveiling a three-stage migration plan to quantum-safe cryptography while debate intensifies over whether Bitcoin or traditional banks face greater risk.
SBI Shinsei Bank will begin a pilot program on June 10 allowing its 4.33 million depositors to receive vouchers worth 20% of their interest payments, redeemable for Bitcoin, Ethereum, and XRP. The three-month program represents a novel integration of traditional banking with cryptocurrency rewards.
Treasury Secretary Scott Bessent testified that the department is proceeding with "deliberate speed" on establishing a Bitcoin reserve, while Representative Nick Begich introduced legislation to formally create a Strategic Bitcoin Reserve within the Treasury Department.
The defunct cryptocurrency exchange Mt. Gox transferred 10,422 BTC ($739 million) from cold storage to a new wallet on June 2, marking its first on-chain movement in over two months. The transfer occurred as Bitcoin traded below $70,000, with approximately 35,000 BTC still remaining for distribution to creditors.
Prediction market platform Kalshi launched the first CFTC-regulated Bitcoin perpetual futures in the U.S. and applied for altcoin derivatives, while former congressman George Santos faces federal investigation for allegedly betting against his own attendance at a State of the Union address on the platform.
Investment firm Bernstein has initiated coverage on Bitcoin miners TeraWulf and Cipher Digital with 'Outperform' ratings and price targets of $36 and $32 respectively, positioning them as 'power landlords' for AI infrastructure. The coverage comes as Bitcoin mining stocks have significantly outperformed BTC in 2026, with miners securing over $110 billion in AI-related deals over the past two years.
IBM disclosed plans to invest over $10 billion in quantum computing over five years, aiming to build the first large-scale quantum computer capable of running complex calculations reliably and without errors by 2029.
New reports warn the cryptocurrency industry faces an accelerating quantum computing threat that could compromise Bitcoin's security sooner than expected, with over $2 trillion in digital assets potentially at risk. Early Bitcoin investor Andrew Gault suggests the industry may be focusing on the wrong vulnerabilities.
Security experts warn that artificial intelligence is accelerating the quantum computing threat to cryptocurrencies like Bitcoin, while Stanford cryptographer Dan Boneh cautions that a rushed post-quantum migration could cause worse failures than the threat itself. The concerns come as interest in vulnerable early Bitcoin holdings, including Satoshi Nakamoto's coins, intensifies.
NEAR Protocol plans to launch a post-quantum-safe signing testnet in Q2 2026 using FIPS-204 standard, allowing users to rotate keys to quantum-resistant alternatives. The announcement comes as Project Eleven warns quantum computing threatens blockchains, banking systems, and digital infrastructure, with concerns that Bitcoin may face challenges in quantum migration.
Project Eleven released a report warning that quantum computers capable of breaking blockchain cryptography could arrive as soon as 2030, with a baseline 'Q-Day' scenario projected for 2033. The report provides an analytical framework for measuring quantum progress based on research from Google and other quantum computing leaders.
In a research note published May 3, 2026, Galaxy Digital Research Director Alex Thorn reported that the Bitcoin community is coalescing around a consensus to leave Satoshi Nakamoto's coins untouched while preparing for quantum computing threats through post-quantum cryptography adoption.
Alberta Investment Management Corporation (AIMCo), a major Canadian pension fund, disclosed a $219 million position in Strategy (formerly MicroStrategy), marking its return to Bitcoin exposure via public markets after previously exiting. The fund is now sitting on a $69 million unrealized gain.
Block Inc. revealed it holds 28,355 BTC ($2.2 billion) including $1.5 billion in customer Bitcoin and $692 million in corporate treasury, adding 114 BTC in Q1 and committing to regular third-party audited reports.
Independent researcher Giancarlo Lelli broke a 15-bit elliptic curve key on publicly accessible quantum hardware, winning Project Eleven's 1 BTC Q-Day Prize. The largest public demonstration yet of a quantum attack on Bitcoin-class cryptography, achieved on commodity cloud hardware rather than a national lab.
The CEO of troubled Polish exchange Zonda revealed a Bitcoin wallet holding approximately 4,500 BTC (worth over $330 million) is inaccessible because private keys were never transferred during a company handover.
Morgan Stanley's MSBT Bitcoin fund has overtaken WisdomTree's spot Bitcoin ETF in assets after only six trading days, with inflows topping $100 million. The fund is now within striking distance of overtaking three other January 2024 Bitcoin ETF launches.
Cardano founder Charles Hoskinson releases a video calling BIP-361 a mischaracterized soft fork that would render 1.7 million BTC permanently unrecoverable. He tweets "Have fun stealing Satoshi's coins" directly at supporters of the proposal and argues Bitcoin's lack of on-chain governance makes the quantum problem unsolvable, while positioning Cardano's governance model as the alternative.
Bitcoin developers are weighing two approaches to quantum computing threats: BIP-361, which would freeze legacy coins over five years to force migration to quantum-resistant signatures, and BitMEX Research's 'Quantum Canary' bounty system that would only trigger a freeze after a proven attack occurs.
Following BIP-361's publication, Polymarket odds for "Will Satoshi Nakamoto move any Bitcoin in 2026?" climbed to 9.3%, up from 4.5% at the start of the year, drawing over $2.4 million in trading volume. Analysts noted the muted overall response suggests traders still view BIP-361 as a governance discussion rather than an imminent catalyst, but the doubling of odds signals growing market unease around Satoshi's estimated 1.1 million BTC.
Within 48 hours of BIP-361, three competing approaches surface. Adam Back argues at Paris Blockchain Week for optional upgrades over forced freezes. BitMEX Research proposes a reactive "canary fund" that only triggers a freeze if a quantum attack is proven on-chain. Justin Sun announces TRON will be the first major chain to deploy NIST post-quantum signatures on mainnet, though no technical documentation follows.
Jameson Lopp and five co-authors publish BIP-361, a three-phase plan to phase out legacy signatures and freeze any unmigrated coins within five years, including an estimated 1.1 million BTC attributed to Satoshi Nakamoto.
Wall Street broker Bernstein published research arguing that while quantum computing poses a real threat to Bitcoin, it represents a multi-year upgrade cycle rather than an existential crisis, with risks concentrated in older wallets and exposed keys.
Lightning Labs CTO Olaoluwa Osuntokun published a working prototype on April 8, 2026, that lets Bitcoin wallet owners prove ownership via a zero-knowledge proof of their seed phrase, without revealing it, providing an escape hatch if an emergency quantum-defense upgrade ever locks users out of their funds. Running on a consumer MacBook, the tool generates a verifiable proof in 55 seconds with a 1.7 MB output, closing a gap that had existed only in theory: how to protect Bitcoin from a quantum threat without freezing ordinary users out.
Circle has unveiled plans to make its Arc layer-1 blockchain quantum-resistant from day one, allowing users to create wallets that can withstand future quantum computer attacks. The move comes amid growing concerns that 'Q-Day' may arrive sooner than anticipated.
Algorand jumped 50% after a Google Quantum AI research paper highlighted the blockchain as a live example of post-quantum cryptography implementation, while warning that quantum computers could threaten Bitcoin and Ethereum's current cryptographic security.
Financial services giant Charles Schwab, with nearly $12 trillion in client assets, announced plans to launch spot Bitcoin and Ethereum trading through a new 'Schwab Crypto' account by the end of Q2 2026, with early access subscriptions now available.
Bitcoin mining company Riot Platforms sold 3,778 BTC worth approximately $250-290 million during Q1 2026, more than 2.5 times its production, as part of a strategic pivot toward AI infrastructure. The sales add to a broader trend of public Bitcoin treasury companies liquidating holdings.
Google researchers published findings showing quantum computers may require 20x fewer qubits than previously estimated to break elliptic curve cryptography used by Bitcoin and Ethereum. The research suggests fault-tolerant quantum machines capable of threatening crypto security could arrive by 2029-2032, accelerating industry urgency around post-quantum upgrades.
A group of Bitcoin developers propose BIP-360, introducing a new quantum-resistant transaction type called pay-to-Merkle-root (P2MR). The proposal creates a migration path for new coins but leaves billions in legacy addresses unprotected.
CoinShares published research, pushing back on estimates that 20–50% of Bitcoin faces quantum risk, arguing only ~1.6 million BTC in legacy P2PK addresses, roughly 8% of supply, is realistically targetable. The firm said breaking Bitcoin's cryptography would require quantum computers 100,000 times more powerful than today's and narrowed the true market-disruption risk to just ~10,200 BTC concentrated enough to cause meaningful price impact.
Google publishes a call to action urging governments and industry to prepare for the end of current encryption standards, warning that a cryptographically relevant quantum computer is “not forever a decade away” and that the transition to post-quantum cryptography must begin now.
Bitcoin developer Agustin Cruz introduced a draft Bitcoin Improvement Proposal (BIP) named the Quantum-Resistant Address Migration Protocol (QRAMP). This proposal aims to protect Bitcoin wallets from potential future threats posed by advancements in quantum computing.
Quantum startup BTQ Technologies has introduced a novel Proof-of-Work (PoW) consensus mechanism leveraging Coarse-Grained Boson Sampling (CGBS). The method, detailed in a peer-reviewed research paper, aims to provide a more energy-efficient alternative to traditional PoW while ensuring blockchain networks remain secure against quantum computing threats.
