Until recently, scanning the entire Internet, with its billions of unique addresses, was a slow and labor-intensive process. For example, in 2010 the Electronic Frontier Foundation conducted a scan to gather data on the use of encryption online. The process took two to three months. A team of researchers at the University of Michigan believed they could do better. A lot better. On Friday, at the U
![Here’s what you find when you scan the entire Internet in an hour](https://cdn-ak-scissors.b.st-hatena.com/image/square/0d6a0faa93047b68c21b89a2904533d189dbe9ce/height=288;version=1;width=512/https%3A%2F%2Fwww.washingtonpost.com%2Fresizer%2F2CjPNwqvXHPS_2RpuRTKY-p3eVo%3D%2F1484x0%2Fwww.washingtonpost.com%2Fpb%2Fresources%2Fimg%2Ftwp-social-share.png)