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15 Apr 2026, 05:30
What Presidio Bitcoin Found About Quantum Computing: Threat Timeline And Next Steps
Non-profit group Presidio Bitcoin has released a technical report examining the growing quantum computing risk to the Bitcoin network. The document looks at where quantum capabilities stand today, how much of BTC’s value could be exposed, what mitigations are already feasible, and how the wider ecosystem might coordinate a software update and migration. Why Upgrades Are Harder In A Decentralized System Presidio Bitcoin begins from a simple point: Bitcoin is software, and that is both its power and its weakness. Because it is built as a system of code, Bitcoin is relatively easy to move, verify, and hold. At the same time, it inherits digital risks that come with relying on cryptography. One of the most important of those risks has been discussed since Bitcoin’s early days—cryptographically relevant quantum computers, often shortened to CRQCs. Related Reading: XRP Could Face Big Moves Based On CLARITY Act Outcomes – 3 Key Price Scenarios In theory, a CRQC could break the elliptic curve cryptography that underpins Bitcoin by enabling the derivation of private keys from public keys. The report emphasizes that this would primarily enable quantum-enabled theft of coins tied to exposed public keys. The report argues that Bitcoin’s mitigation toolkit is broad and technically achievable today, but the path is less straightforward than it is for more centralized systems. In centralized environments, coordination can be directed more easily. With Bitcoin, coordinating upgrades across developers, users, wallets, custodians, and infrastructure is inherently more complex. There is also the risk of making changes too early, too quickly, or in a way that creates new vulnerabilities. Presidio also notes that post-quantum schemes come with meaningful trade-offs, not just technical but practical ones for the ecosystem. 6.5 Million Bitcoin Could Be At Risk At the center of the vulnerability is Shor’s algorithm. Presidio explains that if a sufficiently powerful quantum computer exists, it could execute Shor’s algorithm to derive private keys from exposed public keys. The report provides a stark quantitative estimate of what that could mean. If a cryptographically relevant quantum computer existed today, approximately 6.5 million BTC— one-third of the total supply—would be immediately vulnerable to theft. More than two-thirds of that exposure—about 4.5 million Bitcoin—comes from address reuse. Much of the reuse, the report says, is concentrated among a small group of large custodians that use the practice for simplicity. While that concentration increases the risk profile, Presidio also points out that this portion is reducible without any protocol change. The mitigation is straightforward in concept: rotate to fresh addresses. The remaining structural exposure is different in nature. Presidio estimates 1.72 million BTC sits in legacy pay-to-pubkey (P2PK) outputs, and the report notes that most of those are presumed lost. It also distinguishes another category: addresses that have never been spent and where only a hash of the public key is visible on-chain are not vulnerable at rest under current understanding. The Uncertain Clock For CRQCs A major part of the report is the uncertainty around timing. Presidio stresses that the timeline for CRQCs remains uncertain, with expert surveys placing the probability of cryptographically relevant machines emerging between 2030 and 2035 at about 50%. Even so, Presidio outlines a concrete strategy for Bitcoin network’s path forward. It involves deploying post-quantum signature schemes via a soft fork, rather than a disruptive hard change. Related Reading: Three-Way Bitcoin Outlook Tied To US–Iran War—Which Case Is Most Realistic? Activation is where timing matters most. Presidio says the Bitcoin ecosystem will likely complete the post-quantum signature activation well before a CRQC threat materializes. However, Chaincode’s playbook—referenced in the report—places activation around month 6–7 if it does not happen earlier. After activation, migration would follow. Featured image from OpenArt, chart from TradingView.com
15 Apr 2026, 05:30
Pudgy Penguins: How $0.008 supply zone could decide PENGU’s next move
PENGU builds steady momentum with rising accumulation as buyers target the key $0.008 resistance level for a potential breakout move.
15 Apr 2026, 05:25
ETH/BTC Rebound Sparks Crucial Market Recovery as On-Chain Data Surges
BitcoinWorld ETH/BTC Rebound Sparks Crucial Market Recovery as On-Chain Data Surges A significant ETH/BTC rebound is now steering the broader cryptocurrency market toward recovery, according to a detailed analysis by CoinDesk. This pivotal shift, observed globally in March 2025, marks a potential turning point following a prolonged period of consolidation. The ETH/BTC ratio, a critical gauge of Ethereum’s performance against Bitcoin, has notably bounced to approximately 0.0313. This recovery follows a multi-year low recorded in January. Consequently, Ethereum has surged roughly 4% over the past week, decisively outperforming Bitcoin and injecting optimism across digital asset markets. ETH/BTC Rebound Analysis and Key Drivers The recent ETH/BTC rebound is not an isolated price movement. Instead, it is fundamentally supported by explosive growth in Ethereum’s on-chain ecosystem. Analysts point to three primary data points fueling this resurgence. First, network adoption has skyrocketed. The first quarter of 2025 witnessed an 82% quarter-over-quarter increase in new unique Ethereum addresses, totaling 284,000. This surge indicates robust, organic user growth beyond speculative trading. Second, network activity has reached unprecedented levels. Total transactions on the Ethereum blockchain hit a monumental record of 200.4 million in Q1 2025. This metric underscores the network’s utility and sustained demand for its block space. Finally, the stablecoin sector anchored on Ethereum continues to demonstrate overwhelming dominance. The total supply of ETH-based stablecoins now stands at a staggering $180 billion, commanding a 60% market share across all blockchains. This deep liquidity pool is essential for DeFi and institutional activity. The Path from Rebound to Sustained Trend Despite the encouraging ETH/BTC rebound, analysts maintain a measured perspective. Ethereum’s price remains more than 50% below its 52-week high, a reminder of the market’s previous volatility. For the current recovery to evolve from a short-term squeeze into a genuine, long-term trend reversal, a specific technical threshold must be reclaimed. Market technicians identify the 0.035 level for the ETH/BTC ratio as a critical resistance zone. A sustained break above this level would signal stronger conviction and could attract further capital rotation from Bitcoin into Ethereum. Historical Context and Market Impact The ETH/BTC ratio serves as a vital barometer for altcoin market health. Historically, a rising ratio often precedes broader capital flows into alternative cryptocurrencies. The current ETH/BTC rebound, therefore, has implications extending far beyond these two assets. It potentially heralds a renewed risk-on appetite among cryptocurrency investors. This dynamic can be illustrated by comparing key recovery periods: Period ETH/BTC Ratio Low Recovery High Primary Catalyst Q1 2023 0.062 0.083 Shanghai Upgrade Q1 2024 0.046 0.061 ETF Speculation Q1 2025 0.028 0.0313* On-Chain Growth *Current level as of analysis. This rebound occurs within a maturing regulatory landscape and increased institutional infrastructure, providing a more stable foundation than previous cycles. The integration of traditional finance through spot ETFs and regulated custodians has altered market dynamics, potentially making recoveries more data-driven. Expert Insights on Network Fundamentals Industry researchers emphasize that on-chain metrics provide a more reliable signal than price alone. The record transaction count and user growth directly translate to higher network revenue and security. Furthermore, the dominance of Ethereum-based stablecoins reinforces the network’s role as the central settlement layer for the digital economy. These fundamentals suggest the ETH/BTC rebound is underpinned by tangible utility, not merely sentiment. As one market strategist noted, ‘Price follows usage. The current data indicates Ethereum’s core value proposition is being actively utilized at scale.’ Future Outlook and Monitoring Points Market participants should monitor several factors to assess the longevity of the ETH/BTC rebound. Key indicators include: Sustained Ratio Levels: Daily closes above the 0.032 resistance. On-Chain Continuity: Consistency in new address creation and transaction volume. Stablecoin Flows: Net inflows into ETH-based stablecoins versus competitors. Developer Activity: Commitments to core Ethereum repositories and layer-2 networks. Additionally, broader macroeconomic conditions, such as interest rate decisions and traditional market correlations, will continue to influence capital flows into the cryptocurrency sector as a whole. Conclusion The ongoing ETH/BTC rebound presents a compelling case for a data-driven market recovery. Powered by record on-chain adoption, transaction volume, and stablecoin dominance, Ethereum’s outperformance against Bitcoin signals a potential shift in market structure. However, the transition from a rebound to a confirmed trend reversal hinges on overcoming key technical resistance. For investors and analysts, the confluence of strong fundamentals and price action makes the ETH/BTC ratio a critical metric to watch in the second quarter of 2025, as it may dictate the direction for the entire altcoin market. FAQs Q1: What does the ETH/BTC ratio measure? The ETH/BTC ratio measures the price of one Ethereum (ETH) in terms of Bitcoin (BTC). It is calculated by dividing the price of ETH by the price of BTC. A rising ratio indicates ETH is outperforming BTC, while a falling ratio shows the opposite. Q2: Why is the current ETH/BTC rebound considered significant? This rebound is significant because it is accompanied by record-high on-chain fundamentals, including user growth and transaction volume. This suggests the price movement is supported by real network usage, not just speculation. Q3: What level does the ETH/BTC ratio need to reach for a confirmed trend reversal? Analysis indicates the ratio must sustainably reclaim the 0.035 level. This would signal a break of key resistance and could confirm a longer-term shift in momentum from Bitcoin to Ethereum. Q4: How does Ethereum’s on-chain data support the rebound? Key supporting data includes an 82% quarterly increase in new users (284,000), a record 200.4 million transactions in Q1 2025, and $180 billion in ETH-based stablecoin supply, representing 60% of the total market. Q5: What impact could this ETH/BTC rebound have on other cryptocurrencies? Historically, a strong and sustained rise in the ETH/BTC ratio often leads to increased investor confidence and capital flows into the broader altcoin market, as Ethereum is considered a bellwether for alternative digital assets. This post ETH/BTC Rebound Sparks Crucial Market Recovery as On-Chain Data Surges first appeared on BitcoinWorld .
15 Apr 2026, 05:22
XRP surges as Rakuten enables payments at 5 million stores
🪙 XRP now accepted at 5 million Rakuten stores in Japan. XRP price surged to $1.38 after the new integration. Continue Reading: XRP surges as Rakuten enables payments at 5 million stores The post XRP surges as Rakuten enables payments at 5 million stores appeared first on COINTURK NEWS .
15 Apr 2026, 05:20
Why is XRP stuck below $1.40 despite ETF inflows and rising OI?
The cryptocurrency market has slightly retraced following its recent rally. Bitcoin has dropped to the $74,300 level, while Ether is trading around $2,330, down by more than 1% in the last 24 hours. Ripple’s XRP is also down by 0.5% since Tuesday and is now hovering around $1.35 per coin. It has failed to take out the $1.40 resistance level once again and could record further losses in the near term. XRP ETFs, derivatives gain on renewed investor interest XRP is down by less than 1% in the last 24 hours despite a mild return in risk appetite from both institutional and retail market participants. According to CoinGlass , US-listed XRP spot Exchange-Traded Funds (ETFs) extended a three-day bullish streak, attracting $10.9 million in inflows on Tuesday and roughly $1.46 million on Monday. Cumulative inflows now stand at $1.23 billion, with net assets under management averaging $966 million. If the risk-on sentiment holds and draws investor interest, XRP could gain momentum, driving prices above $1.40. In addition to that, XRP is currently experiencing a mild influx of retail capital, as futures OI rises to $2.47 billion on Wednesday, from $2.38 billion recorded on Monday. A growing, liquid derivatives market could serve as a foundation for sustained price recovery. However, XRP’s OI remains incredibly low from the $10.94 billion record numbers it achieved in July when its price hit the $3.66 all-time high. The growth in derivatives demand underpins investor confidence and supports sustained price increases. XRP struggles to break $1.40 resistance The XRP/USD 4-hour chart remains bearish and efficient as Ripple has failed to break above the $1.40 resistance once again. It is currently trading at $1.35, maintaining a bearish near-term bias as it holds beneath the major moving averages. XRP remains capped first by the 50-day Exponential Moving Average (EMA) at $1.41, with the 100-day EMA at $1.56 and the longer-term 200-day EMA at $1.81 reinforcing a broader downside tone. The Relative Strength Index (RSI) at 51 on the 4-hour chart is broadly neutral, suggesting a consolidation phase rather than a sharp downside move. The Moving Average Convergence Divergence (MACD) is also modestly positive on the same chart, hinting that any recovery attempts could struggle while this overhead resistance remains intact. If the bulls push harder, XRP could encounter immediate resistance at the 50-day EMA near $1.41. A daily candle close above this level would ease current pressure and open the way toward the 100-day EMA around $1.56. An extended rally would allow the bulls to target the $1.73 resistance, followed by the 200-day EMA near $1.81, which forms a broader supply zone that would need to be cleared to support a sustainable bullish reversal. However, if the $1.40 resistance remains in play, XRP could retest the weekly low of $1.32 over the next few hours or days. The next major support stands at the $1.30 level. The post Why is XRP stuck below $1.40 despite ETF inflows and rising OI? appeared first on Invezz
15 Apr 2026, 05:20
Bitcoin Security Crisis: Urgent Debate Over Freezing $74 Billion in BTC Threatened by Quantum Attacks
BitcoinWorld Bitcoin Security Crisis: Urgent Debate Over Freezing $74 Billion in BTC Threatened by Quantum Attacks The Bitcoin community faces a critical security dilemma as developers debate freezing approximately 1.7 million BTC vulnerable to quantum computing attacks, including coins potentially belonging to Satoshi Nakamoto valued at $74 billion. This unprecedented proposal represents one of the most significant security challenges in Bitcoin’s 16-year history, forcing the network to confront fundamental questions about autonomy versus protection. The discussion emerged publicly in March 2025 following increased awareness of quantum computing advancements and their potential to break traditional cryptographic security. Bitcoin Quantum Attack Vulnerability Explained Quantum computers threaten Bitcoin’s security through their ability to solve mathematical problems that protect traditional digital signatures. Specifically, these advanced machines could potentially break the Elliptic Curve Digital Signature Algorithm (ECDSA) that secures Bitcoin transactions. The vulnerability primarily affects early Pay-to-Public-Key (P2PK) addresses created before 2010, which publicly expose the public key in their transaction history. Once quantum computers achieve sufficient power, they could theoretically reverse-engineer the private key from the public key, allowing unauthorized access to funds. Approximately 1.7 million BTC remain in these vulnerable addresses today. This represents about 8% of Bitcoin’s total circulating supply. The most notable vulnerable holdings include: Early miner rewards from Bitcoin’s first two years of operation Satoshi Nakamoto’s suspected holdings estimated at 1.1 million BTC Other pioneer addresses from Bitcoin’s earliest adopters Security researchers estimate that quantum computers capable of breaking ECDSA could emerge within the next decade. Consequently, the Bitcoin community must address this vulnerability before it becomes an immediate threat. The proposed solution involves implementing a network-level freeze on these vulnerable UTXOs, preventing their movement until owners upgrade to quantum-resistant addresses. Technical Implementation and Network Impact The proposed freeze mechanism would operate at the consensus layer, requiring a soft fork or hard fork implementation. Developers suggest creating a new transaction validation rule that identifies and restricts vulnerable UTXO spending. This approach would maintain blockchain continuity while protecting at-risk funds. However, implementation presents significant technical challenges, including accurate identification of all vulnerable addresses and ensuring backward compatibility. Jameson Lopp, Bitcoin Core developer and Casa co-founder, emphasized the stakes in recent technical discussions. “If quantum attackers compromise these funds, the resulting market panic could devastate Bitcoin’s value proposition,” Lopp stated. “We must balance security with Bitcoin’s foundational principles.” His comments reflect the technical community’s divided perspectives on appropriate responses. Vulnerable Bitcoin Holdings by Address Type Address Type Approximate BTC Value (USD) Primary Risk Factor Early P2PK Addresses 1,700,000 $74 billion Public key exposure Satoshi Suspected Holdings 1,100,000 $48 billion Historical vulnerability Other Pioneer Addresses 600,000 $26 billion Legacy security models Expert Perspectives on Network Security Cryptography experts note that quantum resistance represents the next major evolution in blockchain security. Dr. Michele Mosca, co-founder of the Institute for Quantum Computing at the University of Waterloo, previously warned that there’s “a one in seven chance that fundamental public-key cryptography will be broken by quantum computers by 2026.” While timelines remain debated, the cryptographic community generally agrees that preparation must begin years before quantum supremacy arrives. Bitcoin developers have explored quantum-resistant alternatives for several years. Potential solutions include: Post-quantum cryptography algorithms like lattice-based or hash-based signatures Multi-signature schemes with quantum-resistant components Time-lock mechanisms requiring extended confirmation periods Hybrid approaches combining traditional and quantum-resistant cryptography Each solution presents trade-offs between security, transaction size, and verification speed. The current debate centers on whether to implement protective measures proactively or reactively. Proponents argue that early action prevents catastrophic loss, while opponents contend that mandatory changes violate Bitcoin’s permissionless nature. Philosophical Conflict and Community Division The freeze proposal has ignited intense philosophical debate within Bitcoin circles. Critics argue that network-level intervention contradicts Bitcoin’s core principles of individual sovereignty and censorship resistance. They maintain that users should bear responsibility for securing their own funds and upgrading their security practices. Furthermore, opponents question whether developers should make decisions affecting assets they don’t control, particularly Satoshi Nakamoto’s presumed holdings. Supporters counter that systemic risks require systemic solutions. They compare the quantum threat to discovered vulnerabilities in other technologies that required coordinated patching. “Just as internet protocols evolved to address security flaws, Bitcoin must adapt to existential threats,” argued a developer in recent mailing list discussions. This perspective emphasizes Bitcoin’s survival as paramount, even if requiring temporary deviations from ideological purity. The debate reflects broader tensions between Bitcoin’s original vision and practical realities of maintaining a $1.3 trillion ecosystem. Similar philosophical conflicts emerged during previous technical debates, including block size increases and Taproot adoption. However, the quantum threat presents unique challenges due to its potential for irreversible fund loss rather than mere network inefficiency. Historical Context and Precedent Bitcoin has faced security challenges before, but never of this magnitude. In 2010, developers discovered and fixed an inflation bug that could have created unlimited Bitcoin. In 2013, a critical vulnerability required emergency patching to prevent blockchain splits. These incidents established precedents for developer intervention during existential threats. However, previous fixes addressed protocol flaws rather than restricting user funds. The closest historical parallel involves the 2017 Bitcoin fork that created Bitcoin Cash. That event demonstrated how philosophical differences could split the network. The quantum debate risks similar division, potentially creating separate chains with different security approaches. Already, community forums show deepening polarization between maximalist and pragmatic factions. Market Implications and Investor Concerns The quantum vulnerability discussion has prompted serious consideration among institutional investors and regulatory bodies. Major cryptocurrency custodians have begun evaluating their exposure to vulnerable addresses and developing migration strategies. Several exchanges have announced plans to proactively move funds from legacy addresses to quantum-resistant formats, though this requires private key access that may not exist for dormant holdings. Market analysts note several potential outcomes: Short-term volatility as uncertainty affects investor confidence Increased due diligence on Bitcoin holdings’ security characteristics Regulatory scrutiny of cryptocurrency security standards Insurance market development for quantum-related risks Valuation divergence between quantum-resistant and vulnerable Bitcoin The $74 billion at stake represents significant market concentration risk. If compromised, these funds could flood the market, dramatically affecting Bitcoin’s price and liquidity. Even the perception of vulnerability might influence trading behavior, creating self-fulfilling market dynamics. Consequently, the debate extends beyond technical circles to encompass broader economic considerations. Timeline and Implementation Challenges Quantum computing development follows an uncertain trajectory. Current estimates suggest breaking 256-bit ECDSA would require quantum computers with millions of qubits and exceptional error correction. Present technology remains orders of magnitude below this threshold. However, cryptographic experts recommend beginning migration years before capability arrives, as address upgrades require coordinated effort across the ecosystem. Implementation challenges include: Identifying all vulnerable addresses across Bitcoin’s entire history Creating upgrade paths for users with lost keys or inactive addresses Maintaining network consensus during transition periods Educating users about necessary security upgrades Coordinating with exchanges, custodians, and wallet providers The Bitcoin Improvement Proposal (BIP) process typically requires extensive testing and community review. Previous major upgrades like SegWit and Taproot took years from proposal to activation. Quantum resistance measures would likely follow similar timelines, emphasizing the need for early action despite uncertain threat horizons. Conclusion The Bitcoin quantum attack vulnerability debate represents a pivotal moment for cryptocurrency security and philosophy. The proposed freeze of 1.7 million BTC addresses fundamental questions about protocol evolution, user responsibility, and systemic risk management. As quantum computing advances, the Bitcoin community must balance its foundational principles with practical security requirements. The outcome will shape not only Bitcoin’s resilience but also establish precedents for how decentralized networks address existential technological threats. Regardless of the specific solution adopted, the discussion highlights cryptocurrency’s ongoing evolution from ideological experiment to institutional-grade financial infrastructure requiring robust security frameworks. FAQs Q1: What makes early Bitcoin addresses vulnerable to quantum attacks? Early Pay-to-Public-Key (P2PK) addresses expose public keys in their transaction history. Quantum computers could potentially reverse-engineer private keys from these public keys using Shor’s algorithm, allowing unauthorized access to funds. Q2: How soon could quantum computers break Bitcoin’s cryptography? Estimates vary widely among experts. Most researchers believe practical quantum attacks remain 5-15 years away, but preparation must begin years in advance due to the complexity of upgrading a decentralized network. Q3: Does the freeze proposal affect all Bitcoin holders? No. The proposal specifically targets approximately 1.7 million BTC in early P2PK addresses, representing about 8% of circulating supply. Modern address types like P2PKH and P2WPKH don’t share the same vulnerability. Q4: What happens to frozen Bitcoin if the proposal passes? Frozen UTXOs would remain on the blockchain but couldn’t be spent until moved to quantum-resistant addresses through an approved upgrade process. The funds wouldn’t be destroyed or confiscated, merely restricted from movement. Q5: Are other cryptocurrencies vulnerable to quantum attacks? Yes. Most cryptocurrencies using ECDSA or similar cryptography face quantum threats. However, some newer projects incorporate quantum-resistant algorithms from inception. The Bitcoin debate may influence security approaches across the entire cryptocurrency sector. This post Bitcoin Security Crisis: Urgent Debate Over Freezing $74 Billion in BTC Threatened by Quantum Attacks first appeared on BitcoinWorld .
