Tom Scott

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.

Thanks to the team at Cloudflare – this is not a sponsored video, they just had interesting lava lamps! There’s a technical rundown of the system on their blog here:

Edited by Michelle Martin, @mrsmmartin

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