Let’s Encrypt is a free, automated, and open certificate authority brought to you by the Internet Security Research Group (ISRG). ISRG is a California public benefit corporation, and is recognized by the IRS as a tax-exempt organization under Section 501(c)(3) of the Internal Revenue Code.
Source: Entering Public Beta
letsencrypt로 무료 SSL 인증서 받기에서 소개했던 무료 인증서 발급 프로젝트가 공개 베타에 진입했다.