A consortium called the Internet Security Research Group, founded by Mozilla, Akamai, Cisco, the Electronic Frontier Foundation, IdenTrust, and researchers at the University of Michigan, have ...

Let’s Encrypt, the popular SSL certificate authority, is about to stop sending emails for expiring certificates. If you have a server using Let’s Encrypt, you’ll need to use automations to keep up ...

The open CA prepares for ‘worst scenarios’ with new fiber, servers, cryptographic signing and more. Let’s Encrypt just announced an infrastructure makeover which means the open certificate authority ...

On December 3, 2025, local time, Let's Encrypt, which issues free TLS certificates to websites, announced that it will shorten the validity period of the certificates it issues from 90 days. The ...

Nonprofit certificate authority Let’s Encrypt hit a major milestone earlier this month: it issued its three billionth HTTPS certificate. The ISRG announced this week that Let’s Encrypt issued its ...

The Let's Encrypt project issued the first IP certificate last week. It first wants to gain experience with it before general availability follows later in the year. Let's Encrypt announced this in an ...

Let's Encrypt will begin revoking certain SSL/TLS certificates issued within the last 90 days due to a bug, starting January 28, 2022. The move could impact millions of active Let's Encrypt ...