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Quantum computers might threaten Bitcoin, leading to potential crypto market instability. Diverse opinions suggest early Bitcoin wallets are vulnerable to quantum attacks. Continue Reading: Quantum Computers Threaten Bitcoin: Experts Disagree on the Risk The post Quantum Computers Threaten Bitcoin: Experts Disagree on the Risk appeared first on COINTURK NEWS .

Bitcoin (BTC) Whale Closes $88.8M Short, Opens 3x Long at $89.3K Avg; 30-Day Profit Near $17.46M Amid Ongoing Arbitrage

Bitcoin is experiencing downward pressure ahead of the Bank of Japan's anticipated 25 basis point rate hike on December 19, 2025, as traders de-risk early amid tightening yen liquidity and fading risk appetite. Historical patterns show BTC drawdowns of 23% to 31% following previous hikes, but proactive selling suggests much of the impact may already [...]

FlowDesk sees fading post-Fed demand and low leverage, while Glassnode data show digital asset treasuries quietly resuming bitcoin accumulation in a range-bound market.

Several leading players in the cryptocurrency ecosystem converged on Abu Dhabi last week, eager to strike deals with wealthy Emirati investors who could provide a boost to the industry after a sluggish two months. Following their arrival in the city, sources close to the situation mentioned that what drew these crypto titans to Abu Dhabi was the rapid spread of news that significant investors were in the city during the crypto conference. According to the news, it was speculated that representatives from a $330 billion sovereign wealth fund were circulating, but it appeared to be challenging to locate them. Michael Saylor travels to the UAE seeking significant investors Following speculation that it is difficult to trace individuals from the $330 billion sovereign wealth fund, crypto executives rushed to the capital city and largest emirate of the United Arab Emirates (UAE). At this time, they moved from one conference to another, sharing details about private dinners featuring prominent personalities and seeking connections to members of the royal family. As they continued to exercise this practice, sources noted that Michael Saylor, the founder, former CEO, and current Executive Chairman of Strategy, was part of this group. He was spotted during the Bitcoin MENA conference . When reporters reached out to him to comment on this claim, Saylor stated that the stock price of his firm had drastically declined by more than half since midyear. Therefore, to address this issue, he explained that he had presented his strategy to gain more digital currency using various financial tools to hundreds of investors, including those from sovereign wealth funds. To get in touch with them, he had to travel via the Gulf. Some of the efforts Saylor implemented were to share a presentation with interested parties that described Strategy as a rocket fueled by Bitcoin, targeting a “$20 Trillion Idea.” Meanwhile, the president of Metaplanet, a Japanese hotel operator that established itself as a Bitcoin investor and has also faced a significant drop in stock prices, revealed on stage that the firm is seeking to raise funds via a new preferred-share project known as “MARS.” Other potential investors identified included Dominari Holdings, the investment bank frequently preferred by the Trump family, and the investment and securities division of South Korea’s Hanwha Group. Notably, Hanwha publicly stated its intention to make Abu Dhabi a key hub as it advances into cryptocurrency products. Crypto community raises concerns about the current market declines The current declines in the crypto market have caught many by surprise. Earlier, several believed that US President Donald Trump’s stance on crypto would significantly boost the industry, leading to considerable profits and faster adoption. While stock markets based in the US reportedly remained close to record highs, Bitcoin slowed down in October. This was after the sell-offs of several markets impacted traders and exchanges. Moreover, the plans Trump has set for cryptocurrency legislation have encountered criticism, as some Democratic lawmakers have slowed the progress of a new bill intended to establish regulations for the digital currency market. However, despite these challenges, individuals in the UAE have demonstrated an increased interest in the crypto sector. Sharpen your strategy with mentorship + daily ideas - 30 days free access to our trading program

Muted Bitcoin momentum and falling activity kept HYPE trapped, with downside still firmly in play.

BitcoinWorld Crucial Alert: Altcoin Season Index Plummets to 20 – What This Means for Your Crypto Portfolio Attention crypto investors: The Altcoin Season Index has just delivered a sobering reading of 20. This crucial metric from CoinMarketCap suggests we’re firmly in Bitcoin territory, but what does this really mean for your portfolio? Let’s break down the implications of this significant market signal. What Exactly Is the Altcoin Season Index? The Altcoin Season Index serves as a vital market thermometer. CoinMarketCap calculates this indicator by comparing the performance of the top 100 cryptocurrencies against Bitcoin over a 90-day period. The platform excludes stablecoins and wrapped tokens to provide a pure measure of speculative momentum. When 75% of these altcoins outperform Bitcoin, we enter what traders call an altcoin season, marked by a reading closer to 100. Currently, with the index at just 20, the message is clear: Bitcoin continues to dominate the crypto landscape. This reading suggests that only a small fraction of major altcoins have managed to outpace Bitcoin’s performance in recent months. Understanding this metric helps investors make informed decisions about asset allocation and timing. Why Should You Care About This 20 Reading? A low Altcoin Season Index reading carries several important implications for cryptocurrency investors. First, it indicates that capital remains concentrated in Bitcoin rather than flowing into alternative cryptocurrencies. This concentration often happens during periods of market uncertainty or when investors seek perceived safety in the original cryptocurrency. Second, the current reading suggests that: Bitcoin dominance remains strong in the market structure Most altcoins are struggling to gain independent momentum Risk appetite for alternative cryptocurrencies may be limited The market may be waiting for a catalyst to shift sentiment How Can You Use This Information Strategically? Smart investors don’t just watch the Altcoin Season Index—they use it to inform their strategy. When the index reads this low, it might signal several potential approaches. Some traders view this as an accumulation opportunity for promising altcoins that have underperformed. Others see it as confirmation to maintain higher Bitcoin allocations until conditions change. Historical patterns show that extreme readings often precede market shifts. While the current Altcoin Season Index suggests caution for altcoin investors, it also provides valuable context for understanding market cycles. Monitoring this indicator alongside other metrics can help you time entry and exit points more effectively. What Triggers a Shift in the Altcoin Season Index? Several factors can cause the Altcoin Season Index to climb from current levels. Major developments in blockchain technology, regulatory clarity for specific projects, or breakthrough applications can drive capital into altcoins. Additionally, when Bitcoin’s price stabilizes or consolidates, investors often seek higher returns in alternative cryptocurrencies. The index typically moves gradually rather than abruptly. A sustained period of altcoin outperformance is needed to push the reading toward 75, the threshold for a confirmed altcoin season. This makes the current reading of 20 particularly significant—it shows how far the market would need to move to enter true altcoin season territory. Key Takeaways for Crypto Investors The Altcoin Season Index at 20 delivers a clear message about current market conditions. Bitcoin continues to command investor attention and capital, while most altcoins struggle to keep pace. This doesn’t mean altcoins lack potential—it simply reflects where we are in the current market cycle. Successful investors use indicators like the Altcoin Season Index as one tool among many. They combine this data with fundamental analysis, technical indicators, and market sentiment to make balanced decisions. Remember that market conditions can change rapidly, and today’s reading of 20 could be tomorrow’s opportunity. Frequently Asked Questions What does an Altcoin Season Index of 20 mean? An Altcoin Season Index reading of 20 indicates that only about 20% of top altcoins have outperformed Bitcoin over the past 90 days. This suggests strong Bitcoin dominance and weak altcoin performance relative to the market leader. How often does CoinMarketCap update the Altcoin Season Index? CoinMarketCap typically updates market indices regularly, but the exact frequency can vary. The index calculation uses rolling 90-day performance data, so it reflects sustained trends rather than daily fluctuations. Should I avoid altcoins when the index is this low? Not necessarily. Some investors use low Altcoin Season Index readings as contrarian indicators or accumulation opportunities. However, it does suggest exercising caution and conducting thorough research before making significant altcoin investments. What level indicates a true altcoin season? A true altcoin season is generally indicated when the Altcoin Season Index reaches 75 or higher. This means at least 75% of top altcoins have outperformed Bitcoin over the preceding 90-day period. Can the index predict future price movements? While the Altcoin Season Index reflects past performance, many traders use it as one indicator among many to gauge market sentiment and potential trend changes. It shouldn’t be used alone for prediction but as part of a comprehensive analysis. Does this index include all cryptocurrencies? The index focuses on the top 100 cryptocurrencies by market capitalization, excluding stablecoins and wrapped tokens. This provides a cleaner measure of speculative altcoin performance against Bitcoin. Share This Market Insight Found this analysis of the Altcoin Season Index helpful? Share it with fellow crypto enthusiasts on your social media channels. Understanding market indicators helps build a more informed cryptocurrency community. Your shares help others make better investment decisions in this dynamic market. To learn more about the latest cryptocurrency market trends, explore our article on key developments shaping Bitcoin and altcoin price action and institutional adoption. This post Crucial Alert: Altcoin Season Index Plummets to 20 – What This Means for Your Crypto Portfolio first appeared on BitcoinWorld .

BTC Whale Cross-Chains 317 BTC into 9,105 ETH via THORChain, Following 2,289 BTC Swapped for 67,253 ETH Since Nov 25

A heated debate on social media on Saturday centered on the potential outcome of a quantum computer hacking into Satoshi Nakamoto’s Bitcoin wallet and subsequently selling those coins, making them available on the market. Growing concerns over advancements in quantum computing have sparked urgent discussion across the cryptocurrency world about one of Bitcoin’s most intriguing and high‑stakes vulnerabilities: the safety of Satoshi Nakamoto’s estimated 1.1 million BTC hoard and other legacy holdings. This discussion initially began when Josh Otten, a satirist, documentarian, and YouTuber with over one million subscribers, shared a post with his subscribers demonstrating a price chart that expressed the drastic drop of Bitcoin to $3.00. At this point, Otten proposed that this situation could occur if a powerful quantum computer were to be employed in the robbery of Satoshi Nakamoto’s 1 million BTC and then sold. The crypto community raises concerns about the impacts of quantum computing In a statement , Willy Woo, a renowned, long-term Bitcoin investor and pioneer in on-chain analysis , mentioned that, “Many early investors would take advantage of the sudden drop. The Bitcoin network would endure; most coins aren’t at immediate risk.” However, Woo highlighted that about 4 million BTC are currently kept in pay-to-public-key (P2PK) addresses, including Satoshi’s holdings . According to the long-term bitcoin investor, these addresses indicate the complete public key on the blockchain in the event of transactions, making them vulnerable to quantum attacks. Meanwhile, several analysts also weighed in on the topic of discussion. They argued that when the full public key of a Bitcoin wallet is shown on the blockchain, it exposes these wallets to risk for future quantum attacks. In the event of an adequately sophisticated quantum computer, the analysts noted that such a computer could likely obtain the private key from the public key in the future. This move will effectively occur when the full public key of a BTC wallet is present on the blockchain. Contrastingly, sources mention that the latest types of BTC wallet addresses include better safeguards against quantum attacks. This is because they do not illustrate complete public keys on-chain. Notably, if the public key maintains anonymity, then a quantum computer will not be able to establish the matching private key from these details. On the other hand, the cryptocurrency communities, particularly those supporting Bitcoin, have raised concerns about how quantum computing might impact BTC and the encryption that underpins cryptocurrencies. Some expressed the belief that quantum computing could pose significant challenges to the industry. Adam Back asserts that Bitcoin will be a victim of a quantum threat in the future Adam Back, a renowned British cryptographer and cypherpunk widely known as the inventor of Hashcash and as the co-founder and CEO of Blockstream, a leading Bitcoin infrastructure firm, recently asserted that BTC will not encounter a threat from quantum for the next 20 to 40 years. Back argued that there is sufficient time to adopt post-quantum cryptography standards before the development of a powerful quantum computer that will have the capability to break current encryption and weaken cybersecurity measures. It is worth noting that these standards already exist. Considering the intense nature of the situation, market analyst James Check commented that quantum computing does not pose a threat to the technology adopted in the Bitcoin ecosystem, as cryptocurrency users will likely shift to quantum-resistant addresses before the release of a practical quantum computer. Check further explained that the real threat from quantum computing lies more in its likely effects on the market price of BTC. He also noted that there is no way the Bitcoin community will decide to freeze Satoshi’s coins before a quantum computer can access his wallets and ensure that those coins are back into circulation. Get seen where it counts. Advertise in Cryptopolitan Research and reach crypto’s sharpest investors and builders.