在数字化转型的浪潮中，电子邮件系统作为企业内外部信息交互的枢纽，始终是网络攻防博弈的主战场。长期以来，针对邮件系统的攻击主要集中于文本内容的混淆、恶意附件的伪装以及URL链接的隐匿。为了应对这些威胁，企业普遍部署了基于签名库、启发式规则及沙箱技术的邮件安全网关（SEG），形成了相对成熟的防御体系。然而，攻击者的战术始终随着防御技术的升级而动态演进。近年来，一种利用二维码作为攻击媒介的新型钓鱼手法— ...

By far the biggest driver of annual price increases was the end of the tax holiday the former Trudeau government put in place for restaurants, snacks and other food items from mid-December, 2024 to ...

a16z 昨天发了一张图，把 GLM-5 和 Claude Opus 4.6 并排标注在 Artificial Analysis Intelligence Index 的时间线上https://www.a16z.news/p/charts-of-the-week-vertical-saas原文的说法是：A proprietary model (Claude Opus 4.6) is still t ...

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U.S. Supreme Court’s tariff ruling, Carney’s new defence strategy and the top dividend-paying stocks: Business and investing ...