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Source Cloudflare Blog blog.cloudflare.com Company Blog
October 30, 2026 ai_technology cloud_infrastructure

4 real? Tracking exploitation and patching of eMudhra’s weak keys

View original on blog.cloudflare.com

Overview

Four, just four: that’s the key to break into any unpatched connection on the Internet that is using eMudhra certificates. Here’s how we quickly patched Cloudflare, what evidence we can see of attempted exploitation, and how much of the rest of the Internet remains exposed.

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