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命中率超98%:微软披露侧信道攻击,可窥探你和AI聊天内容
Feng Huang Wang· 2025-11-10 03:12
Core Insights - Microsoft security research team disclosed a serious privacy vulnerability named "Whisper Leak," which is a side-channel attack targeting modern AI chat services [1] - The attack exploits metadata from encrypted network traffic, allowing attackers to infer the topics of conversations without breaking mainstream encryption protocols like TLS [1][3] Group 1: Attack Mechanism - The attack leverages the token-by-token streaming response method commonly used in AI services, which leaves a unique "fingerprint" in network traffic [3] - Researchers trained machine learning models to validate the effectiveness of the attack, demonstrating that different conversation topics generate systematic differences in metadata patterns [3][4] Group 2: Implications and Risks - The vulnerability poses systemic risks to a wide range of AI chat services, with potential exploitation by malicious actors on public Wi-Fi or ISPs to monitor user traffic and identify sensitive conversations [5] - This threat is particularly severe for journalists, activists, and users seeking legal or medical advice, as the topics of conversations can be exposed even if the content is encrypted [5] Group 3: Mitigation Measures - Following responsible disclosure, major AI providers have implemented several mitigation strategies, including: 1. Random padding or content obfuscation to disrupt the correlation between packet size and original content length 2. Token batching to reduce time precision by sending multiple tokens together 3. Active injection of virtual packets to interfere with traffic patterns [5] - These security enhancements may lead to increased latency and bandwidth consumption, forcing service providers to balance user experience with privacy protection [5] Group 4: User Recommendations - For ordinary users handling highly sensitive information, it is advisable to prioritize non-streaming response modes and avoid queries on untrusted networks as effective protective measures [5]
微软耗时1年半重构Windows11电池图标,充电状态可视化升级
Xin Lang Ke Ji· 2025-11-10 00:41
【#微软耗时1年半开发新电池图标#】科技媒体 Windows Latest 11 月 9 日发布博文,报道称在 Windows 11 Build 26x00.7019 预览版更新中,微软重构了任务栏电池图标。 更新后,原先静态的白色电池图标将变得更具表现力。当设备接通电源充电后,图标会变为绿色并附带 一个闪电符号。当用户开启"节能模式"且未接通电源时,图标则显示为橙色,取代了过去表意不够直观 的叶子图标。此外,当电量低于 6% 的临界值时,图标会变为红色,以醒目的方式提醒用户立即充电。 | | Old Icon | | --- | --- | | Battery | D | | Not plugged in | | | Energy Saver | 0 | | 6-20% | | | Charging | | | Healthy: 80-100% | | | Smart Charging | S | | Slow Charging | | | Charging not successful | | | Low Battery | | | 1-5% | | | attery Unknown | | 另外值得关注 ...
周末利空突袭!科技巨头被唱空:微软8连跌!下周科技股要凉了?
Sou Hu Cai Jing· 2025-11-08 17:24
Core Insights - Microsoft reported an 18% revenue growth and a 40% increase in cloud computing, yet its stock price fell for eight consecutive days, marking the longest decline since 2011, resulting in a market cap loss of over $300 billion. This decline reflects a shift in market sentiment regarding the sustainability of AI investments [1] - Other tech giants like Meta and Nvidia also faced significant stock price drops due to increased capital expenditures in AI, indicating a broader market concern about the balance between heavy investment and slow profit realization [3] Group 1: Market Reactions - The market's reaction to Microsoft's earnings report was negative, with an 8-day stock price decline despite strong financial results, highlighting investor skepticism about AI investments [1] - Meta's stock plummeted 11.33% in a single day after announcing increased AI spending, leading to a market cap loss of 1.52 trillion yuan [3] - The Philadelphia Semiconductor Index fell by 1.53% in one week, and both the Nasdaq 100 and indices tracking major tech companies dropped approximately 4%, marking the largest weekly decline since April [3] Group 2: AI Investment Dynamics - Major tech companies, including Microsoft, Google, Amazon, and Meta, collectively spent $77.1 billion on capital expenditures in the first quarter, a 64% year-over-year increase, primarily for data center construction and AI chip procurement [5] - Despite the surge in investment, Microsoft acknowledged a 98% utilization rate of AI infrastructure, indicating unmet customer demand and potential overcapacity concerns [5] - Conflicting signals emerged in the market, with OpenAI announcing a $450 billion data center project while Microsoft paused some data center projects due to excess capacity, raising questions about the sustainability of AI investments [5] Group 3: Institutional Perspectives - Analysts are increasingly concerned about the concentration of capital in a few tech stocks, with warnings from various executives about potential market corrections and the health of the tech sector [7] - Apple's conservative approach to AI investment contrasts with the aggressive strategies of Microsoft and Meta, as Apple reported better-than-expected revenue and profit, suggesting a reevaluation of investment strategies in the current environment [7] Group 4: Market Fundamentals - The disconnect between fundamentals and valuations is evident, as seen with Palantir Technologies, which has a rolling P/E ratio of 446 despite positive earnings reports, indicating a shift in market focus towards risk [9] - Tightening liquidity conditions, exacerbated by the U.S. government shutdown and increased short-term debt issuance, are adding pressure to the market [9] - Uncertainty regarding the Federal Reserve's interest rate path is diminishing the appeal of high-growth tech stocks, prompting caution among investors [10]
外媒:微软成立新团队开发“只为服务人类”的人工智能
Huan Qiu Wang· 2025-11-08 05:05
Core Insights - Microsoft has established a new team focused on developing artificial intelligence that is "only for the service of humanity" [1][3] - Mustafa Suleyman, head of Microsoft's AI division, emphasized that this "human-centered superintelligence" is not "unrestricted and highly autonomous," but rather "carefully calibrated, contextualized, and limited" [3] - Microsoft aims to avoid participating in the race for Artificial General Intelligence (AGI), while competition with OpenAI is expected to intensify [3] Applications of Human-Centered Superintelligence - The new AI will serve as a partner to help individuals "learn, act, enhance productivity, and receive support" [3] - It will provide assistance in the healthcare sector [3] - The AI aims to create "new scientific breakthroughs" in the clean energy field [3]
迪拜数字局携手微软推出AI工具
Shang Wu Bu Wang Zhan· 2025-11-08 03:15
Core Insights - Dubai Digital Authority collaborates with Microsoft to deploy Microsoft 365 Copilot for government employees, becoming one of the first government entities globally to adopt localized AI solutions on a large scale [1] - The initiative spans various departments, aiming to optimize workflows, enhance decision-making efficiency, and strengthen inter-departmental collaboration while ensuring data security and compliance [1] - This project further establishes Dubai as an innovative leader in government AI applications and digital sovereignty [1]
微软遭遇2011年来最长连跌,AI投资疑虑打压科技股
Hua Er Jie Jian Wen· 2025-11-08 01:02
Core Viewpoint - The cautious sentiment towards AI investments is putting pressure on large tech stocks, leading Microsoft to experience its longest losing streak in 14 years, with a significant market cap loss of over $300 billion [1][3]. Group 1: Microsoft Stock Performance - Microsoft's stock price fell by 0.06% on Friday, accumulating a decline of over 4% for the week, and more than 8% over the past eight days [1][2]. - The company's market capitalization has decreased by over $300 billion, marking its longest losing streak since November 2011 [1]. Group 2: Financial Performance and Market Sentiment - Since the quarterly earnings report at the end of October, Microsoft has not recorded a single positive trading day, despite a nearly 20% increase in revenue for the last quarter [3]. - Concerns are growing regarding Microsoft's significant capital expenditures, which reached $34.9 billion, and the expectation of further increases in spending for the current fiscal quarter [3]. Group 3: Broader Market Impact - The Nasdaq 100 index and the Tech Giants index both fell approximately 4% this week, marking the largest weekly percentage drop since April [4]. - In contrast, Apple has not adopted an aggressive strategy in AI, resulting in a slight increase in its stock price on Friday, although it ultimately followed the tech sector's downward trend [4].
纳指创4月来最大单周跌幅 微软连跌8天 创14年来最长连跌纪录
2 1 Shi Ji Jing Ji Bao Dao· 2025-11-08 00:09
Market Performance - On November 7, the U.S. stock market experienced a "V-shaped reversal," with the Dow Jones Industrial Average rising by 0.16% and the S&P 500 increasing by 0.13%, while the Nasdaq fell by 0.21% [2] - For the week, the Dow dropped by 1.21%, the S&P 500 fell by 1.63%, and the Nasdaq saw a decline of 3.04%, marking the largest weekly drop for the Nasdaq since early April [4] Sector Performance - Large tech stocks showed mixed results, with the Wande American Technology Index down by 0.56%. Notable individual performances included Tesla down over 3%, Google down over 2%, and Amazon up by 0.56% [5] - Energy stocks collectively rose, with Exxon Mobil increasing by over 2% and Chevron by more than 1% [5] - Airline stocks mostly increased, with American Airlines up over 3% and Southwest Airlines up by 3% [6] - Semiconductor stocks generally declined, with the Philadelphia Semiconductor Index down by 1.01% [7] - Chinese concept stocks mostly fell, with the Nasdaq Golden Dragon China Index down by 0.95% [8] Commodity Performance - In precious metals, spot gold rose by 0.58% to $4000.29 per ounce, while COMEX gold futures increased by 0.42% to $4007.8 per ounce [8] Economic Context - There is a growing consensus in the U.S. capital markets regarding risks, particularly concerning the AI narrative, which is facing uncertainty due to the high costs and unclear pathways to achieving General Artificial Intelligence (AGI) [8] - The U.S. federal government has been in a "shutdown" for 37 days, causing significant disruptions, including the delay of the October non-farm payroll report [9]
中概股多数下挫,小鹏跌超6%,蔚来跌超4%,特斯拉跌超3%,微软连跌8天
2 1 Shi Ji Jing Ji Bao Dao· 2025-11-07 23:32
Market Overview - The three major U.S. stock indices closed mixed, with the Dow Jones up 0.16%, the S&P 500 up 0.13%, and the Nasdaq down 0.21% [1] - Large-cap tech stocks showed mixed performance, with the Wande American Tech Giants Index down 0.56% [2] Individual Stock Performance - Tesla fell over 3%, Google down over 2%, and Apple down 0.48%. In contrast, Amazon rose 0.56%, Facebook up 0.45%, and Nvidia slightly increased by 0.04% [2][3] - Energy stocks collectively rose, with ExxonMobil up over 2%, Chevron up over 1%, and ConocoPhillips up over 1% [2] Sector Performance - Airline stocks mostly increased, with American Airlines up over 3% and Southwest Airlines up 3%, while Boeing fell nearly 1% [4] - Semiconductor stocks generally declined, with the Philadelphia Semiconductor Index down 1.01% [4] Chinese Stocks - Chinese stocks mostly fell, with the Nasdaq Golden Dragon China Index down 0.95% and the Wande Chinese Tech Leaders Index down 0.98% [4] Precious Metals - Spot gold rose 0.58% to $4000.29 per ounce, while COMEX gold futures increased by 0.42% to $4007.8 per ounce [5] Economic Context - There is a growing consensus of risk in the U.S. capital markets regarding the sustainability of the AI narrative, primarily due to uncertainty surrounding the path to achieving General Artificial Intelligence (AGI) [6] - The U.S. government shutdown has entered its 37th day, impacting economic reporting, including the delay of the October non-farm payroll report [6]
特斯拉市值一夜蒸发超3800亿元!微软连跌8天!加密币全网24小时超25万人爆仓 世界经济论坛主席警告......
Mei Ri Jing Ji Xin Wen· 2025-11-07 23:12
Market Performance - The U.S. stock market ended mixed on November 7, with the Nasdaq down 0.21% and a weekly decline of 3.04%, while the S&P 500 rose 0.13% with a weekly decline of 1.63%, and the Dow Jones increased by 0.16% with a weekly decline of 1.21% [2] - Major tech stocks showed varied performance, with Tesla dropping over 3% and losing $54.5 billion in market value, while Intel rose over 2% [3] Cryptocurrency Market - Bitcoin fell below the $100,000 mark, with over 250,000 liquidations in the crypto market, resulting in a loss of approximately 6.19 billion yuan (around $44 million) [4] - Bitcoin has declined 9% this week, potentially marking its worst weekly performance since March [6] Economic Indicators - Consumer confidence in the U.S. dropped to its lowest level since June 2022, with the preliminary consumer confidence index falling from 53.6 to 50.3 [7] - Concerns about rising unemployment have increased, with 71% of respondents expecting a rise in the unemployment rate over the next year, more than double the proportion from the previous year [8]
微软连跌8天 创14年来最长连跌纪录;央行连续12个月增持黄金;钟睒睒连续5年登顶内地首富丨每经早参
Mei Ri Jing Ji Xin Wen· 2025-11-07 23:03
Group 1 - The Chinese government has announced export control measures on five categories of materials, including rare earths and lithium batteries, effective from November 8 [3] - The U.S. stock market ended mixed, with the Nasdaq down 0.21% and the S&P 500 up 0.13%, marking a cumulative decline of 3.04% and 1.63% for the week respectively [5] - The European stock indices closed lower, with Germany's DAX down 0.78% and France's CAC40 down 0.18% [6] Group 2 - The State Council of China issued an implementation opinion to accelerate the cultivation of application scenarios for new technologies and products, focusing on five key areas [7] - The People's Bank of China increased its gold reserves by 30,000 ounces in October, marking the 12th consecutive month of gold accumulation [7] - The Ministry of Finance outlined six key areas for fiscal policy execution, including boosting consumption and supporting employment [11] Group 3 - The Dutch government expects ASML China to soon resume chip supplies, following constructive talks with China [19] - Tesla's CEO Elon Musk indicated that the Full Self-Driving (FSD) technology is expected to receive full approval in China by early 2026 [19] - The State Administration for Market Regulation guided eight e-commerce platforms to sign a self-regulation agreement on food safety management [20] Group 4 - Huadian Energy announced plans to invest 12.043 billion yuan in a wind power project, aligning with national industrial policies [27] - The company Shanshui Technology reported a change in its actual controller following a divorce settlement, with the new controller being Wu Xinyan [24] - Eighty-one Steel received a notice from the China Securities Regulatory Commission regarding an investigation into information disclosure violations [25]