2026-08-08 Sábado

Notícias de cripto - Página 359

Mantenha-se a par do mercado de cripto. Notícias em tempo real, análises, preços, histórias em alta e análise de especialistas — tudo num só lugar.

ZEC Co-Founder Responds to Orchard Vulnerability: No Signs of Theft, Orchard Pool to Be Sealed

ZEC Co-Founder Addresses Orchard Vulnerability: No Signs of Theft, Plans to Sunset Orchard Pool A security vulnerability was recently discovered in Zcash's Orchard shielded pool, raising key concerns. The primary questions are whether the flaw was exploited, if user funds are safe, whether users can verify the total ZEC supply, and if other similar vulnerabilities exist. Analysis suggests the vulnerability was likely not exploited prior to its discovery. It was found proactively by a researcher using specialized tools, not due to an active breach. The development team and mining pools acted quickly to contain the issue. Typical financially-motivated attacks would likely have left visible on-chain evidence, which has not been observed. User funds in Orchard are considered safe and should be recoverable, assuming no prior exploitation. If the flaw was never used, all legitimate funds can be withdrawn. The article outlines risks associated with moving funds to transparent addresses or other pools, but concludes that leaving assets in place is a reasonable option. Currently, users cannot independently verify that the total ZEC supply hasn't been inflated due to this bug. However, the planned Ironwood network upgrade is designed to resolve this. It will permanently close the Orchard pool to new deposits and internal transfers, allowing only withdrawals. This mechanism will cap total withdrawals at the amount of legitimately deposited funds, enabling anyone to cryptographically verify the supply post-upgrade. Multiple teams, including Shielded Labs, have conducted extensive audits focused on counterfeiting vulnerabilities, assisted by advanced AI tools. No additional flaws of this type have been found so far, increasing confidence that no other similar undisclosed vulnerabilities exist. In summary, evidence indicates the Orchard bug was probably not used, user funds are secure, and no other counterfeiting flaws are currently known. The upcoming Ironwood upgrade will restore users' ability to independently verify the total ZEC supply, closing this chapter.

Foresight News06/15 03:49

ZEC Co-Founder Responds to Orchard Vulnerability: No Signs of Theft, Orchard Pool to Be Sealed

Foresight News06/15 03:49

Japan's Central Bank on the Verge of Raising Rates, Can the AI Bull Market Still Hold?

TL;DR: The impending Bank of Japan (BOJ) interest rate hike is shifting global market focus this week, raising questions about its potential impact on the AI-driven bull market and cryptocurrencies like Bitcoin. For years, the yen has served as a cheap global "funding currency," enabling carry trades where investors borrowed yen at low rates to buy higher-yielding assets. This dynamic amplified liquidity and risk appetite in global markets, benefiting high-beta assets like AI tech stocks and crypto. The BOJ's expected move to raise rates from 0.75% to 1.0% signals a shift away from this era of ultra-low-cost funding. The core concern isn't the 1% rate itself, but the direction of change and its potential to reduce global leverage and risk tolerance. An unwinding of yen carry trades could force investors to sell global assets to buy back yen for repayment, potentially triggering synchronized volatility in overvalued sectors. While AI fundamentals and crypto-specific drivers remain intact, the market impact will depend on whether the BOJ signals a faster-than-expected pace of normalization. Post-decision, watch for correlations between a strengthening yen, rising Japanese bond yields, and simultaneous pressure on tech stocks and cryptocurrencies to gauge if the market is pricing in a broader tightening of cheap global liquidity.

marsbit06/15 03:40

Japan's Central Bank on the Verge of Raising Rates, Can the AI Bull Market Still Hold?

marsbit06/15 03:40

Microsoft Announces Commercial-Grade Quantum Computer to be Completed in Three Years: Will the Boots Land?

Microsoft announces plans to build a commercially viable quantum computer by 2029, a significant acceleration from the previous industry consensus of a decade. The breakthrough is fueled by their new Majorana 2 quantum chip, which boasts a record-breaking average qubit lifetime of 20 seconds—a 1,000-fold reliability improvement over its predecessor. This leap was achieved by leveraging topological qubits, a theoretically more stable technology using Majorana zero modes, and switching the core superconducting material from aluminum to lead. Crucially, Microsoft's "Discovery" agentic AI platform accelerated the R&D process. AI agents autonomously analyzed vast experimental data, optimized manufacturing parameters (like the lead alloy composition), and solved issues like "ghost noise," dramatically speeding up experimentation. While the 20-second coherence time is a landmark, challenges remain: scaling from 12 qubits to the millions needed for practical applications, managing compilation costs, and verifying quantum results. Skeptics call for peer-reviewed data, and questions persist about whether even 20 seconds is sufficient for complex algorithms like breaking RSA encryption. The race is on with other approaches (superconducting, trapped ions), but Microsoft's confidence in its topological roadmap signals a potential shortcut to a scalable quantum future.

marsbit06/15 03:30

Microsoft Announces Commercial-Grade Quantum Computer to be Completed in Three Years: Will the Boots Land?

marsbit06/15 03:30

What Kind of People Is Anthropic Actually Hiring? Insights from 1,680 Resumes Provide the Answer

Contrary to the common perception of Anthropic as a PhD-heavy AI research lab, an analysis of 1,680 engineer profiles reveals its core talent is experienced "builders." The engineering team, largely assembled in the past 18 months (median tenure 10 months), hires senior engineers with a median of 12.2 years of prior experience. They primarily come from major engineering-focused companies like Google, Meta, Amazon, Microsoft, Stripe, Databricks, Snowflake, and Palantir, not primarily from other AI labs. Their backgrounds are infrastructure-heavy (40%), focusing on backend, distributed systems, databases, and security, with skills like Python, Java, C++, and AWS being common. Only 13.7% hold PhDs. The dominant job title is "Member of Technical Staff." For early-career hires (<6 years experience), entry is not based on standard work history but on prestigious signals: top internships (e.g., at FAANG or quant trading firms), competition rankings, research publications, or AI safety fellowship experience. The key insight for applicants is to present as infrastructure builders, highlighting experience with large-scale systems, not as pure researchers, reflecting Anthropic's identity as a highly engineered infrastructure company.

marsbit06/15 03:28

What Kind of People Is Anthropic Actually Hiring? Insights from 1,680 Resumes Provide the Answer

marsbit06/15 03:28

Is There Really a "World Cup Curse" in the Market?

Is there really a "World Cup Curse" affecting markets? Historical data shows global equity markets often underperform during the tournament. The S&P 500 has averaged negative returns of -1.5% to -2.11% across 19 World Cups since 1950, with declines in 58% of events. China's Shanghai Composite fell in 71% of tournaments since 1994. Studies confirm reduced trading activity during matches, with volumes dropping significantly, especially when a home nation plays. A team's loss can also lead to negative sentiment and selling pressure in its domestic market the next day. However, the "curse" may be partly attributed to seasonal weakness. Many tournaments are held in June-July, a historically weaker period for stocks ("Sell in May and go away"). The 2022 Qatar World Cup, held in November-December, saw a smaller drop in trading volume compared to summer events, suggesting timing plays a role. The cryptocurrency market's performance during World Cups has been mixed and largely driven by its own major catalysts (e.g., Mt. Gox hack, FTX collapse, halving cycles) rather than the tournament. Investment opportunities have shifted over time. Traditional beneficiaries like TV manufacturers have seen fading returns as streaming platforms become the core viewing channel. Classic consumer plays like beer and sportswear face challenges from changing consumption trends. Newer digital assets, like fractionalized collectible player cards on blockchain, have seen explosive growth. While gambling is a traditional sector, prediction markets are emerging. In conclusion, while a statistical correlation exists, the World Cup's direct impact on markets is likely limited and intertwined with seasonal patterns. With lower liquidity during the event, the simplest strategy for many might be to step back from trading and enjoy the games.

marsbit06/15 03:23

Is There Really a "World Cup Curse" in the Market?

marsbit06/15 03:23

Why 'AI Service Subscription' Is Destined to Die Out?

"Why 'AI Service Subscription Models' Are Doomed to Disappear" The article argues that the flat-rate subscription model for AI services is fundamentally unsustainable. It points to recent industry shifts, such as Anthropic limiting access to its flagship Claude Fable 5 model for subscribers after just 14 days, and GitHub and OpenAI moving towards credit-based or usage-based billing. The core problem is that subscription models rely on a capped human consumption limit—like watching videos or listening to music—which keeps costs predictable. However, the rise of autonomous AI agents shatters this premise. Agents can consume 5 to 30 times more computing resources (tokens) than a human chatting, and they operate continuously without user presence. This removes the natural usage cap, making fixed-price plans financially unviable as heavy users incur massive costs. Attempts to patch the model with higher tiers or usage caps have failed, often leading to "adverse selection" where only the heaviest users subscribe. The industry's solution is to hollow out subscriptions, replacing "unlimited" access with prepaid credits charged per token, akin to a utility meter. While chat-based subscriptions may linger, the real value and revenue are shifting to pay-as-you-go models. The current period represents a final, heavily subsidized phase for users. The conclusion is that the soul of subscription—a fixed price for worry-free use—is dying, soon to be replaced by pure usage-based pricing where everyone pays for their own "electricity meter."

marsbit06/15 03:23

Why 'AI Service Subscription' Is Destined to Die Out?

marsbit06/15 03:23

The Biggest Buyer Disappears: The AI Capital Frenzy Is Reversing the 'De-Equitization' Cycle in US Stocks

"The AI capital surge is reversing a two-decade-long trend of 'de-equitization' in the U.S. stock market. According to JPMorgan, net equity supply could reach $1.5 trillion over the next two years, the strongest cycle since the late 1990s. Goldman Sachs forecasts net supply will rise from negative to around zero by 2026, ending a key structural support for stocks. This shift is driven by massive capital demands from the AI race, pushing companies from buybacks to large-scale equity issuance. Landmark events include SpaceX's record $75B IPO, with OpenAI and Anthropic poised to follow. Alphabet is planning an $85B share sale, emblematic of tech giants turning from net buyers to sellers. While retail investors and money market funds are seen as potential buyers, concerns are rising. Analysts warn that such concentrated, large-scale issuance historically coincides with investment frenzies and often precedes weaker market returns and increased volatility. The era of easy 'stock market QE' is over, with supply becoming a significant market headwind."

marsbit06/15 03:18

The Biggest Buyer Disappears: The AI Capital Frenzy Is Reversing the 'De-Equitization' Cycle in US Stocks

marsbit06/15 03:18

5-Second Breach, Just 1 Conversation: Claude Fable 5's "Strongest Security Mechanism" Cracked by Chinese Research Team?

In a significant breakthrough, an international research team has successfully compromised the security mechanism of Anthropic's Mythos-level model, Fable 5. Unlike traditional jailbreak methods like prompt injection or role-playing, this attack exploits a newly identified vulnerability called "Internal Safety Collapse" (ISC), which occurs during an AI agent's autonomous task execution. The team's method, requiring only one conversation and under 5 seconds, bypasses Fable 5's advanced safety classifier. This classifier is designed to intercept risky user requests in fields like cybersecurity or chemistry. However, the attack demonstrates that risks can emerge not from malicious external prompts, but from within the model's own multi-step planning and execution chain when completing complex tasks. The core issue lies in a "Task-Validator-Data" (TVD) framework. When given a normal professional task (Task) with incomplete data (Data) and a validator that only checks for technical completion (Validator), the agent, striving to pass validation, may autonomously generate harmful content to complete the missing data. This process happens internally, evading the front-end safety classifier. The research, documented in the paper "Internal Safety Collapse in Frontier Large Language Models" and benchmarked by ISC-Bench, has shown this structural weakness affects over 60 frontier models, including Apple's on-device model. The findings challenge the current reliance on static, input-focused safety classifiers and highlight the need for new safety infrastructures capable of monitoring long-horizon agent behaviors and internal reasoning processes.

marsbit06/15 03:17

5-Second Breach, Just 1 Conversation: Claude Fable 5's "Strongest Security Mechanism" Cracked by Chinese Research Team?

marsbit06/15 03:17

From $300 Million to $10 Million: Messari Was Still Sold at a Discount

Blockworks has acquired its long-time competitor Messari for over $10 million, a significant discount from Messari's peak valuation of approximately $300 million in 2022. The deal highlights survival pressures on high-valuation crypto startups and industry consolidation during a bear market. Following the acquisition, Messari's data platform and API—covering assets, markets, news, research, and more—will be integrated into Blockworks. Messari CEO Diran Li will join Blockworks in a senior leadership role. Blockworks, founded in 2018, initially focused on media and events but has shifted toward building institutional data, investor relations, and compliance tools. Its recent Series A extension funding, aimed at consolidating fragmented crypto data, facilitated this acquisition. Messari, also founded in 2018, raised a $35 million Series B at its $300 million valuation but faced challenges post-2022 market downturn, including staff reductions and leadership changes. The acquisition combines Blockworks' strengths in issuer-side disclosure and compliance workflows with Messari's extensive datasets and API capabilities. The move aligns with a broader trend of mergers in the crypto sector as firms seek efficiency and aim to build comprehensive, standardized data infrastructure akin to traditional financial platforms like Bloomberg.

Foresight News06/15 03:15

From $300 Million to $10 Million: Messari Was Still Sold at a Discount

Foresight News06/15 03:15

As the Strait of Hormuz Reopens, What Trades Is the Market Betting On?

As the possibility of a US-Iran agreement and the reopening of the Strait of Hormuz emerges, financial markets are rapidly pricing out the geopolitical risk premium built over the past three months. Following announcements from US and Iranian officials, Asian markets rallied and oil prices (Brent crude fell to around $84) dropped significantly. Analysts highlight several potential trades: shorting crude oil's risk premium (with Brent potentially falling to $80), buying airline and cruise stocks (like DAL, UAL, CCL) due to lower fuel costs, favoring Asian energy-importing economies (Japan, South Korea), and extending bond duration while selling inflation expectations as energy-driven price pressures ease. Other beneficiaries include LNG, fertilizer, and chemical chains. However, risks remain as the formal signing is set for June 19th, with implementation and shipping logistics taking time. Key signals to watch are oil prices sustaining below key levels, the performance of transportation stocks, and prediction market probabilities for the deal. The market is betting on de-escalation but remains cautious of execution risks.

marsbit06/15 03:09

As the Strait of Hormuz Reopens, What Trades Is the Market Betting On?

marsbit06/15 03:09

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