AI slashes timeline for quantum attack on Bitcoin by 86%

A sudden acceleration in the capabilities of artificial intelligence has dramatically shortened the projected timeline for quantum computer attacks on blockchain networks. According to a newly published research paper, a collaborative effort of more than 100 researchers utilizing AI coding agents succeeded in slashing the resource requirements for a key cryptographic attack on Bitcoin and Ethereum by 86% in just a two-month span. The research cohort brought a key security benchmark down from 10.75 billion to 1.496 billion between late May and July 26.

The findings arrive amid an industry-wide scramble to protect decentralized ledgers from “Q-Day.” The National Institute of Standards and Technology (NIST) has issued draft guidelines proposing the deprecation of classical public-key algorithms at the 112-bit security level after 2030, with a complete ban on their use after 2035. Historically, cryptographic migrations have been planned on a decadal scale.

At the heart of the security concern is the Elliptic Curve Digital Signature Algorithm (ECDSA), specifically the `secp256k1` curve. A sufficiently powerful quantum computer running Shor’s algorithm—a quantum algorithm formulated in 1994 by mathematician Peter Shor—could solve the underlying discrete logarithm problem, allowing an attacker to compromise any address with a visible public key on the ledger. Under classical computing paradigms, reversing this mathematical relationship is functionally impossible.

Cryptocurrency markets experienced downward pressure this week, with major assets dropping between 1% and 4% as market participants braced for the release of the upcoming Consumer Price Index (CPI) report. Bitcoin hovered near the $77,000 mark, while Ethereum stabilized at $2,455 and Solana slid 2% to trade around $100. The price action coincided with a cooling of institutional demand, with spot Bitcoin exchange-traded funds (ETFs) recording $280 million in daily outflows.

To quantify this quantum threat, Eigen Labs initiated a specialized competition called “ECDSA.Fail.” The initiative scores quantum circuit designs by multiplying the number of logical qubits required against the number of Toffoli gates—a type of universal reversible logic gate that represents one of the most computationally expensive operations in quantum processing. A lower final score signifies that a quantum attack would require fewer physical resources and less error correction.

The rapid optimization suggests that the transition to quantum-resistant cryptography may have to occur far faster than the multi-year timelines currently established by global standards bodies and blockchain developers. In response, major blockchain ecosystems have initiated their own defensive measures. The Ethereum Foundation has established a strict deadline of December 2029 to transition its transactions, validators, and database storage to a quantum-resistant architecture. Developers are currently drafting proposals to completely rebuild the validator deposit contract to support post-quantum cryptography.

The research group—comprising specialists from Eigen Labs, StarkWare, Trail of Bits, Theta Labs, MultiVM Labs, and the Ethereum Foundation—deployed a methodology termed “Open Autoresearch.” This system paired human scientists with AI coding agents in an iterative loop, continually refining and verifying circuit designs against a shared, measurable target. By the close of the testing window, the team’s leading design optimized the attack to require 1,151 logical qubits and roughly 1.3 million Toffoli gates, with a subsequent submission pushing the gate count below one million. The optimized score is approximately half the resource benchmark published in March by Google Quantum AI, though differences in counting methodologies prevent a direct side-by-side comparison.

In the judicial system, the legacy of the last market downturn continues to play out. Sam Bankman-Fried, the convicted founder of the collapsed FTX exchange, has petitioned the U.S. Supreme Court to overturn his fraud conviction. Bankman-Fried’s legal team argues that he was unconstitutionally barred from presenting evidence showing that FTX’s customers ultimately lost no funds, and they have characterized the court’s $11 billion forfeiture order as an unconstitutionally “excessive fine” under the Eighth Amendment.

As blockchain developers grapple with long-term cryptographic threats, the immediate horizon remains dominated by regulatory and legislative shifts in the United States. Senate Republicans have released a heavily revised, 630-page draft of the Clarity Act ahead of an anticipated procedural vote on September 15. The updated bill introduces a new requirement for “decentralized-in-name-only” (DINO) protocols to register with the Commodity Futures Trading Commission (CFTC), targeting platforms that claim decentralization but retain centralized admin keys or control structures. The revised draft leaves the bill’s controversial ethics provisions largely intact.

Institutional funding has poured into defensive research. Galaxy Digital committed up to $5 million toward post-quantum cryptography in July, while a nine-firm coalition including BlackRock and Coinbase pledged $15 million over the next three years to fund academic and technical defenses. StarkWare recently pushed the first quantum-safe Bitcoin transaction to the mainnet, utilizing STARK-based cryptographic proofs. Ripple is actively hardening the XRP Ledger against future quantum vectors.

Despite the short-term capital flight from ETFs, exchange data points to massive asset consolidation. Bitcoin reserves held by Binance surged to a two-year high of over 693,000 BTC, representing roughly 30% of all major exchange-held reserves. This accumulation follows a massive wave of deposits, with approximately 77,000 BTC moving onto the platform since late April. Total net outflows for the week reached $440 million.

Prominent industry figures are expressing optimism regarding the regulatory outlook. Coinbase Global Inc. Chief Executive Officer Brian Armstrong stated in a CNBC interview that a $400,000 price target for Bitcoin by 2030 remains reasonable. Armstrong asserted that the digital asset market has bottomed out from its year-long cyclical downturn and indicated he expects comprehensive regulatory guidance from both the Securities and Exchange Commission (SEC) and the CFTC within the coming weeks.

In global markets, energy and precious metals showed mixed signals: Brent crude oil rose 2% to trade at $99 per barrel, while gold eased back by 1% to $4,385 per ounce. U.S. stock futures pointed to a positive open, with both the Dow Jones Industrial Average and the Nasdaq Composite futures up 0.6%.

The acceleration of attack vectors via AI tools threatens to outpace defensive engineering timelines, which were drafted under the assumption that quantum optimization research would progress only at human speed. On-chain Real-World Asset (RWA) perpetual contract volume surpassed $120 billion in August, representing exponential growth from under $1 billion in late 2023, with current open interest hovering near $4.9 billion.

Ethereum developers tentatively scheduled the “Glamsterdam” upgrade on the Sepolia testnet for October 6, though developers cautioned that the code has not yet run stably on private devnets, and no activation dates have been proposed for the mainnet. On decentralized networks, the “Stonkfun” ecosystem saw a massive surge, with its native STONK token breaking $0.30 to reach a market capitalization of $270 million. This activity drove an 86% weekly rally for Raydium’s RAY token, which serves as a primary liquidity hub for the ecosystem’s trading pairs.

Singapore-based Alpha Ladder began the regional distribution of Payward’s (Kraken) xStocks to accredited and institutional investors across key Asia-Pacific markets. The rollout, facilitated by the WealthX platform, follows a memorandum of understanding signed alongside digital payment firm MetaComp.