The Internet Security Research Group and its Let's Encrypt project -- a free, automated and open security certificate authority -- wants to make the Internet securer than it is today.

Let's Encrypt, the Internet Security Research Group 's free certificate signing authority, issued its first certificate a little over four years ago. Today, it issued its billionth.

That Let’s Encrypt doesn’t charge for this service is a big deal. A digital certificate for a website—also useful for email servers and other client/server systems—used to cost hundreds of ...

Let's Encrypt engineers said that of the 116 million TLS certificates that are currently active, only 2.6% are impacted by this issue, representing 3,048,289 certs.