The Hunt for IoT: The Networks Building Death Star-Sized Botnets
With a growth rate of 1,473% in 2016, the hunt for vulnerable IoT devices rages on... - Read more
Achieving Multi-Dimensional Security through Information Modeling – Part 1
Information modeling blends lateral thinking and deductive logic. Applied to information security, it’s a powerful technique for designing a security architecture with multi-dimensional controls...
OVH Renews Platinum Sponsorship of Let’s Encrypt
We’re pleased to announce that OVH has renewed their support for Let’s Encrypt as a Platinum sponsor for the next three years. OVH’s strong...
The Conflicting Obligations of a Security Leader
Faced with competing pressures, CISOs are ultimately the experts at assessing what’s truly at stake in their organizations. - Read more
Application Threat Intelligence: What Do CISOs Need?
I’ve mentioned before how important strong risk management is to a CISO. When it comes to risk, the applications our users depend on are...
Let’s Encrypt 2016 In Review
Our first full year as a live CA was an exciting one. I’m incredibly proud of what our team and community accomplished during 2016....
Launching Our Crowdfunding Campaign
Today we kicked off our first crowdfunding campaign with the goal of raising enough funds to cover about one month of our operations -...
Our First Grant: The Ford Foundation
We are proud to announce that The Ford Foundation has awarded us a grant to help our growing operations.
The Ford Foundation is a major...
Squarespace OCSP Stapling Implementation
We’re excited that Squarespace has decided to protect the millions of sites they host with HTTPS! While talking with their
team we learned they were...
Introducing Internationalized Domain Name (IDN) Support
Let’s Encrypt is pleased to introduce support for issuing certificates that contain Internationalized Domain Names (IDNs). This means that our users around the world...
Latest article
Operation Endgame 4.0 – 153,527 breached accounts
On 18 June 2026, the latest phase of Operation Endgame targeted the SocGholish malware operation, a prolific malware distribution network used to compromise systems...
Accelerate security investigations with Kiro CLI
When a security event occurs in your Amazon Web Services (AWS) environment, rapid response is critical. However security teams often struggle with time-consuming, manual...
Close Encounters of the Human Kind
Welcome to this week’s Threat Source newsletter. I love a Spielberg summer. His ability to imbue a sense of wonder, awe, curiosity, and connection means he’s in a...
New iPhone BootROM Vulnerability Exposes Apple SoCs to Full Chain-of-Trust Compromise
A novel BootROM vulnerability, dubbed usbliter8, affects Apple devices powered by A12, S4/S5, and A13 SoCs. The exploit chains a hardware-level bug in the...
