An innovative protection against website counterfeiting developed by Princeton researchers went live on the internet Feb. 19, boosting security for hundreds of millions of websites. The rollout was the culmination of over two years of close collaboration between research groups at Princeton and Let’s Encrypt, the world’s largest certificate authority serving 200 million websites. https://www.princeton.edu/news/2020/02/21/internet-security-borne-out-collaboration-between-princeton-and-lets-encrypt