---
title: The Lava Lamps That Help Keep The Internet Secure — HIGH T3CH
url: https://hight3ch.com/the-lava-lamps-that-help-keep-the-internet-secure/
date: 2017-11-06
---

# The Lava Lamps That Help Keep The Internet Secure

At the headquarters of Cloudflare, in San Francisco, there’s a wall of lava lamps: the Entropy Wall. They’re used to generate random numbers and keep a good bit of the internet secure: here’s how.