ref: ac53035030dff7d9e33cd22c33d915f6d1b5ef8b
dir: /docs/content/en/showcase/letsencrypt/bio.md/
Let's Encrypt is a free, automated, and open certificate authority (CA), run for the public's benefit. It is a service provided by the [Internet Security Research Group (ISRG)](https://letsencrypt.org/isrg/).