Let’s Encrypt Issued A Billion Free SSL Certificates in the Last 4 Years

Let’s Encrypt, a free, automated, and open certificate signing authority (CA) from the nonprofit Internet Security Research Group (ISRG), has said it’s issued a billion certificates since its launch in 2015. The CA issued its first certificate in September 2015, before eventually reaching 100 million in June 2017. Since late last year, Let’s Encrypt has issued at least 1.2 million certificates