How Lava Lamps Are Helping in the Fight Against Hackers

One timestamped relic is now helping a web security firm fend off the most skilled hackers: lava lamps. Believe it or not, the shapeshifting novelty invented in 1963 is experiencing another renaissance. Cloudflare is filming a lava lamp—along with a pendulum in London and a Geiger counter in Singapore—and then using the shots to randomly generate pixels for a “super-powered cryptographic key.” The reason for …