万事达卡已开放其“机器代理支付”（Agent Pay for Machines）功能的早期访问权限。此前，该系统演示了人工智能代理如何在既定预算内向两家卖家支付九笔研究和广告宣传图片费用。该系统采用 Coinbase 的 x402 协议，支持法币和稳定币的自动支付，但尚未正式商用。

OpenAI 在 ChatGPT 中引入了“锁定聊天”功能，允许用户使用四位数的 PIN 码或支持的设备身份验证来隐藏私人对话，使其不显示在常规聊天记录中。但是，重置忘记的 PIN 码会永久删除所有锁定聊天、受保护的文件和相关内存，OpenAI 支持团队无法恢复这些数据。

与MrBeast有关联的Beast Holdings公司已收到两项商标注册申请的批准通知，商标名称分别为MRBEAST FINANCIAL和BEAST FINANCIAL，涵盖加密货币交易所、支付、银行和其他金融服务。这两项申请目前仍在审核中，该公司需在2027年4月6日前证明其已投入商业使用。此前，BitMine于2026年1月向Beast Industries投资了2亿美元。

MrBeast 的控股公司已提交涵盖加密货币交易所、去中心化交易平台、移动银行和消费贷款的美国商标申请，这可能预示着该公司将向加密货币交易和金融服务领域扩张。

Revolut 已在直布罗陀获得加密货币服务牌照，这加强了这家总部位于英国的金融科技公司的监管影响力，该公司正寻求将其数字资产业务扩展到更多国际市场。

BitMine 购入 12,535 枚 ETH，使其总持仓量增至 604 万枚 ETH，占以太坊总供应量的 4.9%。与此同时，其总资产价值在一周内从 162 亿美元降至 151 亿美元。董事长 Tom Lee 将此次加密货币抛售归咎于人工智能担忧、地缘政治紧张局势和债券收益率上升，但他表示，随着 BitMine 接近其 5% 的以太坊持仓目标，公司仍然看到了买入机会。

ProPublica 的一项调查报告称，政治任命官员试图让美国网络安全机构秘密获取并入侵一台投票机，而人员削减和与州选举官员紧张的关系引发了人们对 2026 年中期选举前联邦选举安全支持的担忧。

一款名为Artex的中国人工智能工具被用于针对日本各行各业公司的网络攻击，其中包括金融、零售和物流等行业。9月和10月，共有8家公司报告数据泄露。随着人们对人工智能使网络犯罪更容易实施以及个人数据泄露风险增加的担忧日益加剧，日本当局正在调查这些攻击事件。

摩根大通正将其代币化银行存款直接带到以太坊上，将一家华尔街大型银行的金融基础设施扩展到公共区块链上，因为机构金融正在越来越多地探索链上支付和结算。

万事达卡于2026年10月19日推出稳定币安全服务，旨在帮助银行在稳定币支付上链前检测欺诈、诈骗和制裁风险。该服务最初与Borderless.xyz和Keyrails合作推出，预计将于2027年在全球范围内上线，届时万事达卡将进一步拓展其稳定币支付和安全服务。

On Sep 21, 2026, 11:47 AM(UTC). According to Binance Market Data, Bitcoin has crossed the 84,000 USDT benchmark and is now trading at 84,834 USDT, with a narrowed 5.43% increase in 24 hours.

On Sep 21, 2026, 11:47 AM(UTC). According to Binance Market Data, BNB has crossed the 790 USDT benchmark and is now trading at 792.359985 USDT, with a narrowed 5.36% increase in 24 hours.

Hyperliquid's market value has exceeded that of Nasdaq and the London Stock Exchange. According to Odaily, the report states this comparison without providing additional details.

Bitcoin BLAKE2b developers plan to restrict miners from unlocking newly mined tokens, with a 45-day waiting period and the change slated for activation at block height 973440. According to ChainCatcher, the chain forked from Bitcoin on August 8, and its native token BTCB2 has been labeled by some trading platforms as Bitcoin BLAKE2b, Bitcoin BIP-110, or XBT. BTCB2 has fallen 84% from its September high of $1,799 and was trading at about $270 to $315 in recent hours. Developer Luke Dashjr said some BLAKE2b mining pools are “attacking” the network. After the fork, the chain kept Bitcoin’s difficulty setting and mined only about 8 blocks in the first 22 days before resuming operations through BLAKE2b hashing and difficulty adjustments. The chain is not listed by most trading platforms or by CoinGecko and CoinMarketCap, while Neoxa has said it will support the upcoming soft fork.

Foresight News reported that Hong Kong-listed game company Boyaa Interactive (stock code: 0434) announced it bought 152 bitcoin last week at an average price of $75,899. The purchase totaled about $11.56 million and was funded by idle cash reserves generated from the company’s operations. According to Foresight News, Boyaa Interactive held 4,468 bitcoin as of the announcement date, with an average cost of about $68,543.

Perpetual futures linked to Volmex's Bitcoin Volmex Implied Volatility Index debuted on Hyperliquid on Monday. According to NS3.AI, the market allows traders to take long or short positions on bitcoin's expected volatility rather than its price direction. The launch was described as the first onchain perpetual futures market for Volmex's bitcoin volatility index.