The cryptocurrency industry is stepping up efforts to guard against potential future quantum computing attacks on Bitcoin. Even though the timeline for feasible threats remains unclear, researchers and major industry players are actively advancing protective measures across multiple fronts. Decrypt’s report released on Sunday highlights three areas gaining momentum: quantum-safe transactions operating within Bitcoin’s existing rule framework, protocol upgrades such as soft forks, and exchange custody-layer protections. This push comes as several recent studies have significantly reduced earlier estimates of the resources needed to break Bitcoin’s elliptic-curve cryptography—the mathematical foundation securing wallets. <h2>Shortened Timeline</h2>Google’s Quantum AI team earlier this year found that breaking Bitcoin’s ECDSA encryption could require fewer than 500,000 physical qubits—twenty times less than previously estimated. In addition, a September paper predicted that a machine with 20,000 physical qubits could crack Bitcoin’s secp256k1 standard in 26 days. Current quantum hardware operates in the range of 100 to 1,000 qubits, still orders of magnitude away from the target, yet the pace of progress has heightened urgency across the sector. Reuters reports that roughly 35% of Bitcoin’s circulating supply sits in addresses whose public keys are already exposed on the blockchain, making these coins the most vulnerable to quantum threats. <h2>Three Lines of Defense</h2>Researchers are actively seeking cost-reduction breakthroughs for quantum-safe transactions so they can function under Bitcoin’s current protocol, lowering adoption barriers. Community engagement around protocol upgrades is also intensifying. Bitcoin’s 2021 Taproot upgrade already included architectural groundwork supporting quantum-resistant spending conditions, while proposals such as BIP-360 aim to formalize migration paths. On the custody side, Coinbase disclosed in July that it is building post-quantum signature processes using secure enclaves and threshold cryptography to protect approximately $250 billion in institutional assets. The exchange stated that once the blockchain begins adopting post-quantum signature schemes, it will offer automated quantum-safe custody services. <h2>Industry Voices Sound the Alarm</h2>Veteran trader Peter Brandt emphasized the issue’s importance in a Friday CoinTelegraph interview. Brandt said, “If it can be hacked, that strikes at its fundamental premise.” He added that if quantum computing truly breaks Bitcoin’s defenses, he would want to “short everything in the Bitcoin world.” However, he also noted that the Bitcoin experts he trusts believe the network cannot yet be broken and that any attack could be addressed through patches. The Bitcoin Policy Institute’s April assessment characterized the situation as follows: “The quantum-computing threat to Bitcoin is neither imminent nor insurmountable. The core challenge lies less in finding technical solutions than in the entire network reaching consensus on when and how to deploy them.”

Bitcoin Industry Accelerates Quantum Computing Defense Measures Deployment on Three Fronts

Circle CEO Jeremy Allaire declared that "the spectacle era of cryptocurrency has ended," defining the next chapter of blockchain as a technology that will quietly blend into the background of everyday financial life. Allaire stated: "The most important technologies in history eventually fade into the background." He described blockchain as "invisible infrastructure" that will operate silently behind consumer and financial applications in the future, without requiring users to interact directly with the underlying network. This statement was shared by CoinMarketCap in a post on the X platform on September 19, coinciding with a rapid rise in institutional industry activity and reflecting Allaire's core philosophy, which he has continued to advocate throughout 2026. <img src="https://static2.fansone.co/images/a1a6c371-4a11-483a-93fe-3578f9d70fa1.avif" />- <h2>From Spectacle to Infrastructure</h2>Allaire's remarks continue his consistent core message. In a July interview, the Circle CEO stated that stablecoins are evolving from cryptocurrency trading tools into "foundational channels that quietly move funds behind the scenes," adding that "every major institution, every large bank, every capital markets company" can now view blockchain assets as digital cash. In early September, Circle launched its Arc blockchain, which Allaire called "the most impactful major platform release in our history," describing it as a universal "economic operating system" for payments, tokenized finance, and commercial interactions between AI agents, according to CoinDesk. This positioning of "invisible infrastructure" comes one week after Allaire commented on CNBC regarding the Clarity Act's failure to pass a Senate procedural vote, once again highlighting that cryptocurrency regulation remains a moving target even as the industry actively moves toward mainstream integration. - <h2>Industry Echoes at EBC12</h2>Allaire's remarks align with the overall tone of the 12th European Blockchain Conference (EBC12), held September 16-17 in Barcelona. In the two-day panels, speakers from Fidelity Digital Assets, Citi, BlackRock, and LSEG all described a market that has moved from proof-of-concept pilots to actual deployment. Citi's Nadine Teychenne emphasized the importance of real-time settlement and programmable assets, while LSEG's Darko Hajdukovic outlined plans for 24/5 trading and digital securities depositories. "This technology has largely proven its capabilities," EBC12 organizers stated. "The focus is now shifting toward creating measurable real-world value." - <h2>The Gap Between Vision and Scale</h2>Despite strong momentum, EBC12 speakers acknowledged that conviction among large asset allocators remains uneven. LO:TECH's Radoslav Poljasevic described traditional investor participation as "present at a certain scale, but still relatively limited compared to inflows into equities and artificial intelligence." Europe's MiCA regulatory framework is also currently under review, with a consultation open until September 30, 2026, to test whether existing rules can keep pace with an industry increasingly integrating into institutional finance. Allaire's vision of blockchain "fading into the background" may well be the shared pursuit of the entire industry. However, whether this vision becomes reality depends on how quickly infrastructure, the regulatory environment, and institutional demand can align. -other source: <a href="https://www.vox.com/2017/7/31/16069680/transcript-blockchain-bitcoin-circle-currency-money-exchange-jeremy-allaire-too-embarrassed-to-ask" rel="noopener noreferrer" target="_blank">《Full Transcript: Blockchain Expert and Circle CEO Jeremy Allaire on Too Embarrassed to Ask》</a>

Circle CEO Says the 'Spectacle Era' of Cryptocurrency Has Ended

Summary: Strategy (MSTR) sold approximately 5.43 million shares through its "at-the-market" program, raising net proceeds of about $544.5 million. The funds were not used to purchase new BTC; instead, the company continued to expand its cash reserves. Saylor stated that dollar reserves have increased to $3.75 billion, sufficient to cover about 2.1 years of preferred stock dividends. Approximately $25 million was used to repurchase about 288,930 shares of STRC stock. Roughly one month after the last BTC purchase announcement, Strategy again did not add to its BTC holdings; total BTC position stands at approximately 843,775 coins, with an average cost of about $75,476. 👀 Investor focus has shifted to: When will Saylor deploy these billions in cash for the next major BTC purchase. ---Michael Saylor's strategy once again raised hundreds of millions of dollars, but surprisingly, none of it was used to purchase new Bitcoin (BTC). Instead, the company continued to expand its cash position. At this point, the world's largest corporate Bitcoin holder appears to be deliberately hitting the brakes, while investors await the next large-scale purchase. Strategy Builds Multi-Billion Dollar ReservesA new SEC filing shows that Strategy sold 5.43 million MSTR shares last week through its so-called at-the-market program. The company raised approximately $544.5 million in net proceeds. Michael Saylor stated that dollar reserves have increased to $3.75 billion. He noted that this amount is sufficient to cover the company's preferred stock dividend obligations for about 2.1 years. Strategy has increased its dollar reserves by $525 million, achieving 2.1 years of dividend coverage. As of July 26, 2026, we hold 843,775 BTC and $3.75 billion in dollar reserves. $MSTR $STRC — Michael Saylor (@saylor) July 27, 2026 A small portion of the raised funds ($25 million) was used to repurchase 288,930 shares of STRC stock. This is also evident from the official SEC filings. Bitcoin Purchase Fails to Materialize AgainWhat investors had been primarily waiting for did not happen again. Strategy did not purchase any additional Bitcoin last week. This brings the total reserves to 843,775 BTC, for which the company paid approximately $63.69 billion in total, at an average purchase price of $75,476 per Bitcoin. Approximately one month has passed since Strategy last announced a new Bitcoin purchase. Since then, the focus appears to have shifted toward strengthening the cash position. This shift comes after the preferred stock STRC, which Strategy used to raise funds earlier this summer, came under considerable pressure. The price fell well below the $100 issue price at the time, prompting the company to first increase its liquidity buffer. STRC has since partially recovered, but the share price remains below the original issue price. With $3.75 billion in cash reserves, Strategy now possesses considerable financial strength. Therefore, the biggest question facing investors is not whether Michael Saylor will buy Bitcoin again, but when he will decide to deploy the billions in reserves for the next purchase.

MicroStrategy's Michael Saylor Raises $3.75 Billion Without Buying New Bitcoin

<h2>1. 傳統金融與加密金融的「深度整合期」已到來</h2>摩根士丹利設立實驗室與 Blockchain.com 籌備 IPO，顯示加密產業正從「邊緣投機資產」轉向「主流金融基礎設施」。 機構端： 不再滿足於被動持有比特幣，而是主動研究區塊鏈如何優化自身業務（如代幣化資產、穩定幣結算）。 企業端： 加密原生企業尋求上市，意味著行業進入成熟期，需要接受公開市場監督，以換取更穩定的資金來源。 <a href="https://www.bloomberg.com/news/articles/2026-09-29/morgan-stanley-builds-crypto-lab-to-test-future-of-wall-street" rel="noopener noreferrer" target="_blank">Morgan Stanley Builds Crypto Lab to Test Future of Wall Street</a> <h2>2. 監管合規成為「新護城河」</h2>希臘 MiCA 牌照核發與 Binance 爭議，凸顯合規已成為加密企業生存與擴張的關鍵。 合規紅利： 獲得 MiCA 牌照的機構將擁有在歐盟 27 國通行的「護照」，這是未合規競爭對手無法比擬的優勢。 監管不確定性： 即使高層傳聞干預，也反映監管環境仍受政治因素影響，企業需做好多手準備。 <a href="https://cointelegraph.com/news/greece-first-mica-entrants-hcmc-binance-lagarde" rel="noopener noreferrer" target="_blank">Greece gets first MiCA entrants as watchdog denies Binance-Lagarde claim</a> <h2>3. AI 與加密的 資本競爭 與 技術融合</h2>Bain 報告揭示的 AI 營收缺口，與加密產業的現狀形成有趣對比。 資本競爭： AI 與加密都在爭奪有限的科技資本。AI 面臨營收無法支撐基礎建設的風險，可能導致部分資金回流至更具明確商業模式的加密項目。 技術融合機會： AI 所需的去中心化算力、數據市場、支付結算等，恰恰是區塊鏈技術的強項。未來可能看到更多「AI + Crypto」的跨界解決方案，例如去中心化 AI 訓練市場、AI 代理支付協議等。 <a href="https://www.bloomberg.com/news/articles/2026-09-29/ai-faces-6-trillion-test-to-justify-data-centers-bain-says" rel="noopener noreferrer" target="_blank">AI Faces $6 Trillion Test to Justify Data Centers, Bain Says</a> <h2>總結</h2>這週的新聞描繪出一個 更成熟、更合規、更務實 的加密產業圖景。機構不再只是買比特幣，而是深入技術底層；企業不再盲目追求高估值，而是尋求可持續盈利；監管不再模糊不清，而是具體落地執行。同時，AI 產業的挑戰也為加密技術提供了新的應用想像空間。

9/29 37幣市簡報｜傳統與加密金融的深度整合期已到來，監管合規 將成新的護城河

#幣市簡報 🔥 Solana提案SIMD-228通過，削減80%通膨率！ 提案將減少SOL發行，理論上提升稀缺性，但市場現況更複雜。 近期交易費用創半年新低，反映生態系統活動明顯減少 本來減少通膨是利多，但SOL要漲，光靠通膨減少還不夠，關鍵還是在於網絡採用率的提升。 Source：https://x.com/0x_37deniz/status/1899850068016120106

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Bitcoin Industry Accelerates Quantum Computing Defense Measures Deployment on Three Fronts

Circle CEO Says the 'Spectacle Era' of Cryptocurrency Has Ended

MicroStrategy's Michael Saylor Raises $3.75 Billion Without Buying New Bitcoin

9/29 37幣市簡報｜傳統與加密金融的深度整合期已到來，監管合規將成新的護城河

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