尽管生成式人工智能加剧了网络安全隐患，引发公众对互联网可能全面瘫痪的担忧，但分析指出完全断网极不可能发生 1。由于互联网具备分布式架构特性，不存在所谓的“总开关”，单个节点或链路故障通常可通过备用路由解决 1。因此，相较于全球性的网络黑障（blackout），针对医疗、银行等特定服务的局部中断更有可能出现 1。然而，依赖共享基础设施（如PHP、Google/Microsoft登录）的特定服务中断风险正在增加 1。例如，PHP漏洞导致支持全球超过70%网站的技术面临风险，促使许多组织将网站下线 1。
澳大利亚信号局（Australian Signals Directorate）警告称，恶意网络活动显著上升 1。数据显示，该机构在2025-26年度发布了超过4,400条关于潜在恶意网络活动的通知，同比增长近80% 1。为提升数字韧性，建议个人和组织通过离线备份关键数据、识别替代方案及测试应急响应计划来应对潜在风险 1。具体措施包括保持重要联系人、照片和文件离线存储，并设置多因素认证的备用登录代码 1。
A complete global shutdown of the internet remains highly improbable due to its distributed architecture, which allows data to bypass single points of failure through alternative routing paths 1. While there is no central "off switch" for the worldwide network, experts warn that targeted disruptions to specific services are becoming more likely as malicious cyber activity intensifies 1. Instead of total blackouts, localized outages affecting critical sectors such as healthcare and banking are anticipated 1.
The growing vulnerability stems partly from heavy reliance on shared infrastructure technologies. For instance, a flaw in PHP—a technology supporting over 70% of websites globally—prompted numerous organizations to temporarily take their sites offline 1. This trend is exacerbated by dependencies on common authentication systems like Google and Microsoft logins, where a single point of failure can cascade across multiple services 1. These structural weaknesses increase the risk of specific service interruptions even if the broader internet remains functional 1.
Security agencies report a significant surge in threats, with Australia’s Signals Directorate issuing more than 4,400 notifications regarding potential malicious cyber activity in the 2025–26 period, representing an almost 80% year-on-year increase 1. In response to this escalating landscape, individuals and organizations are advised to enhance digital resilience by maintaining offline backups of essential files, photos, and contact information 1. Furthermore, users should secure backup login codes for multi-factor authentication and identify alternative service providers to ensure continuity during partial network failures 1.
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