Prompt injection found in HTTP headers across 217 million web responses
What happened
On October 15, 2026, Hacker News featured Signals Corps' analysis of prompt injection in HTTP response headers. The study examined 217,097,223 web responses from Common Crawl, checking headers aimed at AI. It found 7,959 sites sending AI-facing headers, 30 of which contained prompt injection attempts. The report covers only the scale of the analysis and these findings; it does not give the content of the injection attempts or their actual impact.
Written by AI from the coverage · updated 2 hours ago
Coverage
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- Hacker News front pagePrompt injection in HTTP headers: what 217M web responses show
Signals Corps 分析了 Common Crawl 的 217,097,223 次网页响应，发现 7,959 个站点发送面向 AI 的响应头，其中 30 个站点包含提示词注入尝试。
Heat over time
Heat now 9·Comparable peak 10（Oct 15 23:00）·Comparable change over 24 hours –
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