# Qubits Related Articles

HTX News Center provides the latest articles and in-depth analysis on "Qubits", covering market trends, project updates, tech developments, and regulatory policies in the crypto industry.

Bernstein Analysts Allay Bitcoin Fears, Why Quantum Is Not As Big A Threat As You Think

Bernstein analysts address rising concerns about quantum computing's threat to Bitcoin, arguing it is a manageable long-term upgrade rather than an existential risk. While Google researchers recently found that breaking Bitcoin's elliptic curve cryptography may require as few as 500,000 qubits—far fewer than previous estimates—Bernstein emphasizes the industry has a three- to five-year window to adapt. They note the vulnerability primarily affects older wallets with exposed or reused public keys, not Bitcoin's SHA-256 mining process. The report aligns with Google's own 2029 migration timeline, suggesting sufficient time to transition to quantum-resistant cryptography.

bitcoinist04/11 03:03

Bernstein Analysts Allay Bitcoin Fears, Why Quantum Is Not As Big A Threat As You Think

bitcoinist04/11 03:03

New research says quantum computers won’t break Bitcoin mining — but here’s what could

New research challenges the widely held concern that quantum computers could overpower Bitcoin's mining system. The study, titled "Kardashev-scale Quantum Computing for Bitcoin Mining," concludes that while quantum algorithms like Grover’s could theoretically accelerate mining, real-world constraints—such as reversible hashing, error correction, and Bitcoin’s 10-minute block window—make such an attack impractical. A viable quantum mining operation would require millions of qubits and energy consumption comparable to a national power grid, approaching Kardashev Type II civilization levels. Instead, the more immediate quantum threat lies in cryptographic vulnerabilities: Shor’s algorithm could break the public-key cryptography securing Bitcoin wallets. This shifts the focus from mining competition to the need for quantum-resistant security upgrades.

ambcrypto04/08 16:02

New research says quantum computers won’t break Bitcoin mining — but here’s what could

ambcrypto04/08 16:02

Should Bitcoin rush its move to post-quantum cryptography?

The Bitcoin community is divided on the urgency of migrating to post-quantum cryptography (PQC) by the 2029 deadline. JAN3 founder Samson Mow warns against rushing untested PQC solutions, arguing it could expose Bitcoin to attacks from classical computers, reduce transaction throughput due to larger signature sizes, and potentially introduce hidden backdoors. He advocates for solving the quantum computing (QC) problem later rather than sooner. This debate follows a Google Quantum AI report suggesting quantum processors could break Bitcoin's encryption sooner than previously estimated, potentially requiring only 1,200–1,450 logical qubits. Google urges a PQC upgrade by 2029 to protect nearly 7 million BTC. In contrast, figures like Adam Back and Grayscale's Zach Pandl believe practical quantum computers are still years away, posing no immediate threat. However, they agree efforts to prepare for a post-quantum future should accelerate. The issue is complicated by Bitcoin's history of contentious protocol changes and potential for significant technical trade-offs.

ambcrypto04/08 02:02

Should Bitcoin rush its move to post-quantum cryptography?

ambcrypto04/08 02:02

Advancements in Quantum Technology: An Opportunity for the Encryption Industry

Quantum computing advancements, particularly Google's research, are accelerating the timeline for practical quantum applications, posing a near-term threat to cryptocurrency encryption. Estimates suggest quantum systems with as few as 10,000 to 260,000 qubits could break Bitcoin’s elliptic curve encryption—far fewer than previously thought—potentially exposing vulnerabilities by 2029. Risks include rapid private key extraction during transactions and threats to Ethereum’s DeFi and tokenized assets worth ~$100 billion. While theoretical, these risks are driving market action: quantum-resistant tokens and protocols have surged up to 50%, indicating investors are pricing in defensive infrastructure early. Mainstream crypto prices remain stable, reflecting confidence that upgrades, not collapse, will address the threat. The industry must transition to post-quantum cryptography, leveraging existing solutions like zero-knowledge proofs. Blockchain’s adaptability—through forks and protocol upgrades—offers a structural advantage. Quantum computing challenge is thus a forced opportunity: winners will be those embedding quantum resistance into governance and technology design before threats fully materialize.

marsbit04/03 07:31

Advancements in Quantum Technology: An Opportunity for the Encryption Industry

marsbit04/03 07:31

Bitcoin Is At Major Risk From This Single Factor And It’s Not As Far Away As You Think; Google

Google's Quantum AI team has issued a warning that Bitcoin and other cryptocurrencies are more vulnerable to quantum computing attacks than previously thought. The security of these digital assets relies on elliptic curve cryptography (ECD-256), which was believed to require a quantum computer with millions of qubits to break. However, Google's optimized implementation of Shor’s algorithm suggests that only about 1,200–1,450 logical qubits and fewer than 500,000 physical qubits would be needed to compromise the system in minutes. While the threat is not immediate, Google emphasizes that the risk is closer than many assume and recommends transitioning to post-quantum cryptography (PQC). The company is collaborating with entities like Coinbase, the Stanford Institute for Blockchain Research, and the Ethereum Foundation, targeting a 2029 migration timeline. However, upgrading decentralized networks like Bitcoin will require broad consensus and complex protocol changes, posing significant implementation challenges. The crypto industry is urged to begin preparations to mitigate this emerging quantum risk.

bitcoinist04/03 01:01

Bitcoin Is At Major Risk From This Single Factor And It’s Not As Far Away As You Think; Google

bitcoinist04/03 01:01

Bitcoin Bombshell: Google’s 2029 Quantum Warning Sparks New Fear

Google's updated quantum threat model, moving its post-quantum cryptography migration deadline to 2029, has significant implications for Bitcoin and cryptocurrencies. A new whitepaper from Google Quantum AI, alongside researchers including Justin Drake and Dan Boneh, suggests breaking the secp256k1 elliptic curve cryptography (used in Bitcoin) may require far fewer quantum resources than previously believed. The paper estimates Shor’s algorithm could break ECDSA keys in minutes using under 500,000 physical qubits. This has shifted the narrative, with experts now urging immediate transition plans. The paper highlights the risk of "on-spend" attacks against live transactions due to Bitcoin's 10-minute block time, while downplaying quantum risks to proof-of-work mining. Google chose to validate its findings via a zero-knowledge proof instead of full circuit disclosure, citing responsible disclosure concerns. The broader call is for vulnerable cryptocurrency communities to begin migrating to post-quantum cryptography without delay.

bitcoinist03/31 18:31

Bitcoin Bombshell: Google’s 2029 Quantum Warning Sparks New Fear

bitcoinist03/31 18:31

Is crypto security at risk? Google warns of 20x faster quantum threat

Google's research indicates quantum computing advances could threaten cryptocurrency security by breaking widely used encryption standards. The report warns cryptographically relevant quantum computers (CRQCs) with approximately 1,200-1,450 logical qubits could potentially break 256-bit elliptic curve encryption in minutes. This capability might compromise Bitcoin private keys in under nine minutes and expose up to 1,000 Ethereum wallets in roughly nine days, with an estimated 6.7 million Bitcoin addresses currently vulnerable. Google emphasizes a 20-fold reduction in required physical qubits, accelerating the quantum threat timeline. In response, Google advocates transitioning to post-quantum cryptographic standards by 2029, though implementation requires coordinated upgrades and policy changes. Failure to adapt may lead to exploitation risks and market instability. Asian countries show the highest search interest in post-quantum cryptography solutions.

ambcrypto03/31 16:03

Is crypto security at risk? Google warns of 20x faster quantum threat

ambcrypto03/31 16:03

Google research flags quantum attack risk as Ethereum advances post-quantum roadmap

New research involving Google warns that quantum computers with approximately 1,200–1,450 logical qubits could break elliptic curve cryptography—including the secp256k1 standard used in Bitcoin and Ethereum—within minutes. The study highlights two primary risks: “on-spend” attacks, where a quantum system could derive a private key during the 9–12 minute transaction confirmation window, and “at-rest” attacks on dormant wallets with exposed public keys. In response, Ethereum has launched a multi-year post-quantum roadmap aimed at transitioning to quantum-resistant cryptographic system across its protocol layers. However, the shift introduces challenges such as larger signatures, higher computational demands, and the need for coordinated upgrades. User migration to new wallet standards and the vulnerability of older assets also remain significant hurdles. While quantum threats are not immediate, the research underscores the importance of proactive preparation to mitigate long-term risks. Industry leaders like Changpeng Zhao acknowledge that, although transition is feasible, decentralized coordination and potential forks could complicate the process.

ambcrypto03/31 15:05

Google research flags quantum attack risk as Ethereum advances post-quantum roadmap

ambcrypto03/31 15:05

Bitcoin’s Quantum Risk Steals Spotlight At Ethereum Gathering

Bitcoin's vulnerability to quantum computing emerged as a key topic at the ETH Denver conference. While quantum computers pose only a moderate threat to Bitcoin’s hashing algorithms due to limited speed improvements, the real concern lies with digital signatures. Most wallets rely on elliptic curve cryptography, which Peter Shor’s algorithm could break using a sufficiently powerful quantum computer, allowing attackers to derive private keys from public keys. Current estimates of the qubit requirements for such an attack have decreased, with some studies suggesting six-figure-range machines might eventually pose a risk. However, practical challenges like error rates and stability remain significant barriers. In response, the crypto industry is proactively developing defenses. The Ethereum Foundation has a dedicated research group, and companies like Coinbase are engaged in planning, expressing confidence that the quantum threat is solvable with preparation.

bitcoinist02/23 10:22

Bitcoin’s Quantum Risk Steals Spotlight At Ethereum Gathering

bitcoinist02/23 10:22

Bitcoin’s Quantum Risk Is Smaller Than Feared, Researcher Says

A recent analysis indicates that Bitcoin's vulnerability to quantum computing attacks is less severe than commonly perceived. While concerns persist about future quantum machines breaking cryptographic protections, the immediate risk is limited. Reports highlight that only approximately 10,230 BTC, valued at several hundred million dollars, are held in addresses with exposed public keys, making them the most susceptible targets. These are primarily in mid-to-large-sized wallets, many dating back to Bitcoin's early days. Current quantum hardware remains insufficient for such an attack, operating at just over 100 qubits, whereas millions of stable, error-corrected qubits would be required. Experts like Andreas Antonopoulos and Adam Back emphasize the need for proactive preparation rather than panic. They recommend developing upgrade paths, discouraging key reuse in wallets, and testing migration procedures to ensure a smooth transition if quantum risks materialize in the future.

bitcoinist02/10 00:01

Bitcoin’s Quantum Risk Is Smaller Than Feared, Researcher Says

bitcoinist02/10 00:01

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