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第一名方案公开,代码智能体安全竞赛,普渡大学拿下90%攻击成功率
机器之心· 2025-08-23 10:51
你的 AI 编程助手有多安全?也许比你想象的要脆弱得多。近期多项研究 [1-2] 表明,即使是经过安全对齐的大语言模型,也可能在正常开发场景中 无意间生成存 在漏洞的代码 ,为后续被利用埋下隐患;而在恶意用户手中,这类模型还能显著 加速恶意软件的构建与迭代 ,降低攻击门槛、缩短开发周期。许多风险源自模型 推理链条中的细微缺陷,而不仅仅是输入输出层面的显性问题。 在亚马逊举办的针对代码智能体的安全比赛 (Amazon Nova AI Challenge) 中,普渡大学的团队 PurCL 作为红队以超过 90% 的攻击成功率获得比赛第一名,赢得 25 万美元奖金。 在比赛中,12 名团队成员耗时八个月和百万美元开发出基于 AI 认知建模的全过程红队系统,现开放给领域研究者共享使用。 他们的研究发现,对齐代码模型的关键问题在于把对齐技术扩大到复杂的真实领域问题中和提升模型推理的安全相关性。 亚马逊代码模型安全比赛 亚马逊代码模型安全比赛是一场针对大模型代码安全的比赛。 举办方邀请全球顶尖研究队伍提交科研企划,最终在 90 份企划中资助 10 个团队参加比赛,每个团 队在半年的时间内获得了 25 万美元的科研基金和 ...
鲍威尔暗示美联储可能降息,美股三大指数涨超1%
Zhong Guo Zheng Quan Bao· 2025-08-22 15:35
炒股就看金麒麟分析师研报,权威,专业,及时,全面,助您挖掘潜力主题机会! 新华社消息,美联储主席鲍威尔22日在怀俄明州杰克逊霍尔举行的年度经济研讨会上发表讲话,暗示尽 管当前通胀上行风险依然存在,但美联储仍可能在未来数月降息。 在鲍威尔讲话之际,交易员加大对美联储9月降息的押注。截至北京时间22:51,美股三大股指均涨超 1%。美股科技龙头股盘初集体上涨,万得美国科技七巨头指数涨超1%,特斯拉涨超5%。纳斯达克中国 金龙指数大涨超2%,名创优品涨超15%,蔚来涨14%。 鲍威尔暗示美联储可能降息 新华社消息,鲍威尔22日在怀俄明州杰克逊霍尔举行的年度经济研讨会上发表讲话,暗示尽管当前通胀 上行风险依然存在,但美联储仍可能在未来数月降息。 另据央视新闻消息,鲍威尔指出美国经济在高关税与收紧移民政策背景下仍展现韧性,但劳动力市场与 经济增长已出现显著放缓。他表示,尽管通胀仍受关注,但就业市场风险上升可能使美联储在9月降 息。他强调,在政策维持紧缩的背景下,经济前景及风险变化或需调整政策立场。 在通胀方面,鲍威尔指出关税已推高部分商品价格,7月核心PCE物价同比上涨2.9%。他强调,关税效 应可能是一次性冲击,但若 ...
ETF盘中资讯 AI商业化加速,快手绩后领涨4%,腾讯重返600港元!港股互联网ETF(513770)涨逾1%,连续5日吸金超4亿元
Jin Rong Jie· 2025-08-22 02:57
值得关注的是,近期港股互联网ETF(513770)资金面持续升温,上交所数据显示,港股互联网ETF (513770)最新单日获资金净流入2.35亿元,近5日资金连续净流入4.18亿元。 港股互联网ETF(513770)及其联接基金(A类 017125;C类 017126)被动跟踪中证港股通互联网指 数,通过重仓港股互联网龙头,成为港股AI核心标的。数据显示,开年以来至7月末,中证港股通互联 网指数累计涨幅超35%,明显优于恒科指同期表现,领涨弹性突出。 8月22日,港股科网龙头走势较强,快手-W绩后领涨4%,小米集团-W涨超2%,腾讯控股重上600港 元,阿里巴巴-W跟涨。重仓港股互联网龙头的港股互联网ETF(513770)高开高走,场内价格现涨 1.29%,实时成交额1.8亿元。 | 分时 多日 ▼ | | | | F9 鼎前盘后 叠加 九转 画线 工具 @ 2 >> | | | | | | | 港股互联网ETF 2 买 | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1183 | | ...
9月降息概率大降!美联储释放鹰派信号
证券时报· 2025-08-22 00:16
当地时间8月21日(周四),美股三大股指集体下跌,标普500指数跌0.4%,道指跌0.34%,纳指跌0.34%。标普500指数五连跌,纳指连跌三 天。 全球目光聚焦于杰克逊霍尔全球央行年会,美联储主席鲍威尔将于北京时间周五晚间10点发表主旨演讲。这一夏季金融市场"年度大戏"被视为美联储货币政策未来 走向的关键时刻。 周四当天,包括克利夫兰联储主席哈马克、亚特兰大联储主席博斯蒂克和堪萨斯城联储主席施密德在内的决策者,均释放谨慎信号,强调货币政策必须依赖数据, 并不急于降息。 投资者静待鲍威尔重磅讲话 全球目光聚焦于杰克逊霍尔全球央行年会,美联储主席鲍威尔将于北京时间周五晚间10点发表主旨演讲。这一夏季金融市场"年度大戏"被视为美联储货币政策未来 走向的关键时刻。根据LSEG的数据,交易员对美联储9月降息25个基点的押注已从上周的99.9%骤降至79%。市场人士指出,8月市场交投本就清淡,鲍威尔讲话可 能引发剧烈波动。 周四,标普全球公布的数据显示,受更强劲需求推动,美国制造业PMI以三年多以来最快的速度扩张,制造业的回升也推动包含服务业的综合PMI在8月升至今年以 来的最高水平。同时也加剧了持续的通胀压力——企 ...
港股午评:恒指跌0.1%、科指跌0.51%,科技股多走低,医药股及高铁基建股表现强势
Sou Hu Cai Jing· 2025-08-21 04:13
Market Overview - The Hong Kong stock market experienced a narrow downward trend, with the Hang Seng Index down 0.1% at 25,140.96 points, the Hang Seng Tech Index down 0.51% at 5,513.04 points, and the National Enterprises Index down 0.32% at 8,984.22 points [1] - Major technology stocks mostly declined, with Xiaomi and Baidu dropping over 2%, and Meituan down 1.4% [1] - Pharmaceutical stocks surged, particularly internet healthcare stocks, with Dingdang Health rising over 22% and Ping An Good Doctor up over 10% [1] - Infrastructure stocks strengthened, especially high-speed rail stocks, with China CNR Corporation increasing over 5% [1] - Other sectors such as home appliances, oil, rare earths, and electricity were active, while entertainment, lithium battery, automotive, robotics, and gold stocks mostly weakened [1] Company News - Baidu Group reported Q2 revenue of 32.7 billion yuan, a year-on-year decrease of 4%, while net profit increased by 33% to 7.322 billion yuan [2] - Wynn Macau's revenue for the first half was approximately 13.63 billion HKD, down 7.5%, with net profit falling 85.5% to about 231 million HKD [3] - Huazhu Group's revenue for the first half was approximately 11.8 billion HKD, up 3.5%, with net profit increasing by 41.3% to about 2.4 billion HKD [4] - China Evergrande's listing status will be canceled on August 25, while China State Construction International reported a revenue of approximately 566.43 billion HKD, up 0.1%, and a net profit of about 52.59 billion HKD, up 5.1% [5] - Hong Kong and China Gas reported a revenue of 27.514 billion HKD for the first half, up 0.07%, with net profit decreasing by 2.5% to 2.964 billion HKD [5] Institutional Insights - CITIC Securities indicated that the half-year report performance period will be a crucial point for the continuation of the Hong Kong stock market, with a shift from liquidity-driven to performance-driven and policy validation phases expected [6] - Zhongtai Securities noted that the Hong Kong market is likely to benefit from the acceleration of AI commercialization and continued inflow of southbound funds, with significant growth potential in AI technology and new consumption sectors [6] - Industrial Securities highlighted that the Hong Kong market is experiencing a phase of volatility and differentiation, with a focus on mid-year performance and cost-effectiveness [6] - Zhongtai International reported a record net inflow for the Hong Kong Stock Connect, with 6.03 billion USD flowing into the Chinese stock market in July, indicating strong domestic investor sentiment [7]
港股午评:三大指数齐跌 科技股多数走低 基建股、医药股强势
Ge Long Hui· 2025-08-21 04:09
盘面上,大型科技股多数走低,其中,小米、百度跌2.4%,美团跌1.49%,阿里巴巴、京东小幅下跌, 腾讯、快手飘红;再迎行业利好消息,医药类股全线拉升,互联网医疗股方向涨幅较大,叮当健康大涨 超21%领衔,平安好医生涨12%;券商指为完成全年预算,基建支出需加速,基建类股亦走强明显,尤 其是高铁基建股涨幅领先,其中,中国中车涨超5%;家电股、石油股、稀土概念股、电力股多数活 跃。 港股上午盘三大指数集体收跌,恒生指数跌0.1%,国企指数跌0.32%,恒生科技指数跌0.51%,市场未 能延续昨日午后拉升回暖行情。 另一方面,影视娱乐股、锂电池股、汽车股、机器人概念股、黄金股多数走弱,此外,日前创历史新高 的长飞光纤光缆大跌超12%,"股王"老铺黄金跌5.69%。(格隆汇) ...
南方周末:2025中国企业社会责任观察报告
Sou Hu Cai Jing· 2025-08-21 01:53
Core Insights - The report titled "2025 China Corporate Social Responsibility Observation Report" focuses on the theme of "Upward Competition, Reshaping Responsibility Leadership," showcasing the current state and trends of corporate social responsibility (CSR) practices in China [1] - The report is based on a survey of 620 companies across various sectors, evaluating CSR across seven dimensions and implementing a veto system for companies with significant negative CSR events [1] - Key findings indicate that while the CSR development index for Chinese companies has improved, scores in economic and environmental dimensions remain low [1] Group 1: CSR Trends and Observations - The report identifies ten major observations, including the rising CSR development index, compliance pressures for overseas companies, and the integration of CSR into executive compensation and corporate strategy [1] - The emergence of "sustainable development services" as a new market opportunity is highlighted, along with the role of leading companies in promoting sustainability across the entire value chain [1] - Companies are increasingly focusing on low-carbon transformation, although challenges in carbon reduction persist [1] Group 2: Industry Insights - The report provides specific insights into various industries, noting that the internet and technology sectors are focusing on ethical practices and anti-corruption, while the automotive industry faces supply chain pressures [1] - The financial sector is addressing key issues through five major articles, and the renewable energy sector is experiencing dual pressures [1] Group 3: Leading Companies and Case Studies - Notable CSR case studies include Schneider Electric's transition from practice to empowering clients, and Lenovo's expansion into new growth areas through ESG and AI [1] - The report serves as a reference for companies looking to enhance their CSR efforts and navigate the challenges associated with sustainable development [1]
美联储重磅,美股承压!这一关键金属持续涨价,产业链迎机遇
Zheng Quan Shi Bao· 2025-08-21 00:29
钨价持续攀升 ,产业链迎增长机遇。 当地时间8月20日,美股主要股指涨跌不一,道指盘中一度下跌0.34%,随后回升,收盘微涨0.04%;纳指盘中大跌1.92%,跌破21000点,收盘下跌 0.67%;标普500盘中下跌1.05%,收盘跌0.24%。 美联储7月会议纪要公布 | 美股指数 它 | | | | --- | --- | --- | | 道琼斯 | 纳斯达克 | 标普500 | | 44938.31 | 21172.86 | 6395.78 | | +16.04 +0.04% | -142.09 -0.67% | -15.59 -0.24% | | 中国金龙指数 | 纳指100期货 | 标普500期货 | | 7606.75 | 23318.25 | 6411.00 | | +24.86 +0.33% | -5.75 -0.02% | -2.25 -0.04% | 大型科技股普遍下跌,万得美国科技七巨头指数跌1.07%,苹果跌1.97%,亚马逊跌1.84%,特斯拉跌1.64%,谷歌跌1.14%。中概股涨跌不一,纳斯达克中 国金龙指数上涨0.33%,网易涨1.71%,阿里巴巴、拼多多、京东集团、百度集团 ...
美联储重磅,美股承压!这一关键金属持续涨价,产业链迎增长机遇(附名单)
Zheng Quan Shi Bao Wang· 2025-08-21 00:05
Group 1: Tungsten Price Trends - Tungsten prices have been on the rise this year, with significant increases in the past week, showing daily price hikes of 3,000 to 10,000 yuan per ton [5] - As of August 20, the price of 65% tungsten concentrate reached 217,000 yuan per ton, up 3,000 yuan from August 19, marking a 51.75% increase since the beginning of the year [5] - The price of ammonium paratungstate (APT) at 88.5% purity is reported at 311,500 yuan per ton, reflecting a 47.98% increase year-to-date [5] Group 2: Supply and Demand Dynamics - The recent price surge is attributed to tightening supply and emerging demand, with the Ministry of Natural Resources reducing the tungsten mining quota for 2025 by 4,000 tons, a decrease of 6.45% [7] - Major tungsten-producing provinces, Jiangxi and Yunnan, have also seen reductions in mining output, contributing to a significant decrease in market circulation [7] - Demand for tungsten in hard alloys is growing due to its superior properties, with applications in various industries including aerospace and electronics [7] Group 3: Market Performance and Stock Analysis - Tungsten-related stocks in the A-share market have generally risen, with an average increase of 10.1% since August [9] - Notable performers include Luoyang Molybdenum (603993) and Zhongtung High-tech (000657), with cumulative increases of 22.48% and 18.99%, respectively [9] - Some tungsten concept stocks are currently undervalued, with a median rolling P/E ratio of 30.24, and companies like Shengtun Mining (600711) having a P/E ratio below 20 [10] Group 4: Company Performance - Shengtun Mining has the lowest valuation with a rolling P/E ratio of 12.41, holding 32,200 tons of tungsten metal in its own mine [11] - Among the eight companies that have disclosed performance data, three have turned losses into profits, while others like Luoyang Molybdenum and Xianglu Tungsten Industry have reported significant year-on-year profit growth [11] - Luoyang Molybdenum is expected to achieve a net profit of 8.2 to 9.1 billion yuan in the first half of the year, representing a year-on-year increase of 51.37% to 67.98% [11]
QDII持仓大洗牌!加仓英伟达、比亚迪!砍仓拼多多、腾讯(附最新持股名单)
私募排排网· 2025-08-20 03:34
Core Viewpoint - The QDII funds have strategically adjusted their holdings in response to the global market dynamics, focusing on technology and consumer sectors in the US and Hong Kong, while also capitalizing on opportunities in European high-end manufacturing and energy sectors [4][15]. Summary by Sections US Market - In Q2 2025, QDII funds increased their positions in AI-related technology stocks such as Nvidia, Microsoft, and Apple, which collectively have a market capitalization exceeding 440 billion [4]. - Significant reductions were made in holdings of Pinduoduo, with a decrease of approximately 1.34 million shares, marking it as the most significantly reduced stock among the top 20 [5]. Hong Kong Market - QDII funds reduced their stakes in Tencent, Alibaba, and Xiaomi, with Tencent seeing a decrease of about 12.73 million shares and Alibaba a reduction of approximately 5.13 million shares [6][7]. - Conversely, there was a notable increase in holdings of Meituan, NetEase, and JD.com, indicating a structural adjustment within the internet sector [7]. A-Share Market - Some QDII funds maintained positions in A-shares, with top holdings including Wuliangye, Luzhou Laojiao, and Kweichow Moutai, all held by Zhang Kun's E Fund Quality Selection Mixed Fund [9]. UK Market - QDII funds have focused on energy and financial stocks, significantly increasing their holdings in Shell and HSBC, reflecting a strategy to capture energy profits amid ongoing geopolitical tensions [12]. Other Regions - In Q2 2025, QDII funds concentrated on high-end manufacturing in Europe and semiconductor leaders in the Asia-Pacific region, with notable holdings in Airbus, SAP, and TSMC [13]. - The funds have shown a keen sensitivity to market rotations, reallocating investments towards sectors with higher visibility and reasonable valuations [13][15].