What’s encrypting your internet surfing? An algorithm created by a supercomputer? Well, if the site you’re visiting is encrypted by the cybersecurity firm Cloudflare, your activity may be protected by a wall of lava lamps. Cloudflare covers websites for Uber, OKCupid, & FitBit, for instance. The wall of lamps in the San Francisco headquarters generates a random code. Over 100  lamps, in...