Sensor Intel Series: Top CVEs in February 2024
27 new CVEs, and continued IoT targeting. See what's new from February 2024. - Read more
New Intermediate Certificates
On Wednesday, March 13, 2024, Let’s Encrypt generated 10 new Intermediate CA Key Pairs, and issued 15 new Intermediate CA Certificates containing the new...
Introducing Sunlight, a CT implementation built for scalability, ease of operation, and reduced cost
Let’s Encrypt is proud to introduce Sunlight, a new implementation of a Certificate Transparency log that we built from the ground up with...
Khalil Corbin on how the arts helped shape him — and led to his...
Before joining Elastic, Khalil Corbin worked in the public sector, doing non-profit work with kids on probation — and writing for music blogs on...
A Year-End Letter from our Vice President
This letter was originally published in our 2023 Annual Report.
We typically open our annual report with a letter from our Executive Director and...
Our role in supporting the nonprofit ecosystem
For more than ten years, we at the nonprofit Internet Security Research Group (ISRG) have been focused on our mission of building a more...
Evolution of Workplace Search: Search your private data with Elasticsearch
Workplace Search functionality will merge with Elastic Search in the future. Here’s what you need to know. - Read more
Increase your security governance with CAA
According to Cloudflare’s Merkle Town, 257,036 certificates are issued every hour. We at Let’s Encrypt are issuing close to 70% of those certs. Being...
Shortening the Let’s Encrypt Chain of Trust
When Let’s Encrypt first launched, we needed to ensure that our certificates were widely trusted. To that end, we arranged to have our intermediate...
Making the boat faster: Advantages of embedding services and training in software sales
Explore the advantages of embedding services and training in software sales and understand how it contributes to achieving sustainable growth. - Read more
Latest article
Siemens KACO Blueplanet Inverters
View CSAF
Summary
KACO blueplanet Inverters contain multiple vulnerabilities that could allow an attacker to derive the credentials from the devices serial number and misuse them...
Windows Netlogon Remote Code Execution Vulnerability
What is the Vulnerability? A critical vulnerability, CVE-2026-41089, affecting the Windows...
Attackers exploiting unpatched Cisco SD-WAN flaw
Cisco warns customers of an actively exploited high-severity vulnerability in Catalyst SD-WAN Manager, an enterprise network management system that has...
ICYMI: May 2026 @AWS Security
Read all about the latest AWS security features, compliance updates, and hands-on resources in our new, monthly digest posts. You’ll find expert blog posts,...
