Making every harness durable

8 eMudhra certificates are compromised. Here's what you need to know

Following the discovery that eight eMudhra intermediate certificates use weak keys, Cloudflare is deploying mitigations and releasing client updates. We explain the impact, our response, and what customers and developers should do next.

CPChristopher Patton·October 20, 2026Engineering

Notes on the complex roots of unity

One of the most wonderful aspects of math is how deep we can get by studying seemingly trivial questions. Consider the roots of unity, where "unity" simply means the number 1. Basics: roots of unity for real numbers Studying the roots of unity usually begins in middle school: what is …

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