Lava lamps secure 10% of the internet. (Yes, really.)

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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 an in-depth technical rundown of the system on their blog here: https://blog.cloudflare.com/lavarand-…