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Sources represented on this page. Publication and observation dates describe the content; successful batch dates describe local collection. A recent batch does not certify complete coverage or current provider availability.

5 sources: 0 stale, 0 needing attention, 0 paused, 5 unverified.

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2,400+ MATCHING RECORDSMETADATA ONLY / SOURCE ATTRIBUTION PRESERVED
REPORT1 SOURCE

ACME v2 API Endpoint Coming January 2018

Update, April 27, 2018 ACME v2 and wildcard support have been fully available since March 13, 2018. Update, January 4, 2018 We introduced a public test API endpoint for the ACME v2 protocol and wildcard support on January 4, 2018. ACME v2 and wildcard support will be fully available on February 27, 2018. Let’s Encrypt will add support for the IETF-standardized ACME v2 protocol in January of 2018.

First reported Jun 14, 2017 00:00 UTCCatalog metadata updated Oct 08, 2026 03:55 UTCOpen evidence record
REPORT1 SOURCE

ACME Support in Apache HTTP Server Project

We’re excited that support for getting and managing TLS certificates via the ACME protocol is coming to the Apache HTTP Server Project (httpd). ACME is the protocol used by Let’s Encrypt, and hopefully other Certificate Authorities in the future. We anticipate this feature will significantly aid the adoption of HTTPS for new and existing websites. We created Let’s Encrypt in order to make getting

First reported Oct 17, 2017 00:00 UTCCatalog metadata updated Oct 08, 2026 03:55 UTCOpen evidence record
REPORT1 SOURCE

ISRG Legal Transparency Report, January 2016 - June 2016

The trust of our users is ISRG’s most critical asset. Transparency regarding legal requests is an important part of making sure our users can trust us, and to that end we will be publishing reports twice annually. Reports will be published three months after the period covered in order to allow us time to research all requests and orders received during the period. Download Legal Transparency Repo

First reported Oct 01, 2016 00:00 UTCCatalog metadata updated Oct 08, 2026 03:55 UTCOpen evidence record
REPORT1 SOURCE

Looking Forward to 2019

Let’s Encrypt had a great year in 2018. We’re now serving more than 150 million websites while maintaining a stellar security and compliance track record. Most importantly though, the Web went from 67% encrypted page loads to 77% in 2018, according to statistics from Mozilla. This is an incredible rate of change! We’d like to thank all of the people and organizations who worked hard to create a mo

First reported Dec 31, 2018 00:00 UTCCatalog metadata updated Oct 08, 2026 03:55 UTCOpen evidence record
REPORT1 SOURCE

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. I’d like to share some thoughts about how we’ve changed, what we’ve accomplished, and what we’ve learned. At the start of 2016, Let’s Encrypt certificates had been available to the public for less than a month and we were supporting approximately 240,000 active (unexp

First reported Jan 06, 2017 00:00 UTCCatalog metadata updated Oct 08, 2026 03:55 UTCOpen evidence record
REPORT1 SOURCE

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 philanthropic entity both in the US and globally. One of its programmatic areas, Internet Freedom, is focused on creating a more open and inclusive Internet experience for all people. Our relationship with Ford was born out of this mutual desire. According to Mich

First reported Oct 27, 2016 00:00 UTCCatalog metadata updated Oct 08, 2026 03:55 UTCOpen evidence record
REPORT1 SOURCE

Let's Encrypt Root to be Trusted by Mozilla

The Let’s Encrypt root key (ISRG Root X1) will be trusted by default in Firefox 50, which is scheduled to ship in Q4 2016. Acceptance into the Mozilla root program is a major milestone as we aim to rely on our own root for trust and have greater independence as a certificate authority (CA). Public CAs need their certificates to be trusted by browsers and devices. CAs that want to issue independent

First reported Aug 05, 2016 00:00 UTCCatalog metadata updated Oct 08, 2026 03:55 UTCOpen evidence record
REPORT1 SOURCE

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 - $200,000. That amount covers the operational and engineering staff, the hardware and the software, and general operating expenses needed to securely and reliably issue and manage many millions of certificates. We decided to run a crowdfunding campaign for a couple

First reported Nov 01, 2016 00:00 UTCCatalog metadata updated Oct 08, 2026 03:55 UTCOpen evidence record
REPORT1 SOURCE

Defending Our Brand [Updated]

Update, June 24 2016 We have confirmed that Comodo submitted Requests for Express Abandonment for all three trademark registration applications in question. We’re happy to see this positive step towards resolution, and will continue to monitor the requests as they make their way through the system. We’d like to thank our community for their support. Some months ago, it came to our attention that C

First reported Jun 23, 2016 00:00 UTCCatalog metadata updated Oct 08, 2026 03:55 UTCOpen evidence record
REPORT1 SOURCE

Looking Forward to 2018

Let’s Encrypt had a great year in 2017. We more than doubled the number of active (unexpired) certificates we service to 46 million, we just about tripled the number of unique domains we service to 61 million, and we did it all while maintaining a stellar security and compliance track record. Most importantly though, the Web went from 46% encrypted page loads to 67% according to statistics from Mo

First reported Dec 07, 2017 00:00 UTCCatalog metadata updated Oct 08, 2026 03:55 UTCOpen evidence record
REPORT1 SOURCE

Facebook Expands Support for Let’s Encrypt

We’re excited that Facebook is supporting our work through a three-year Platinum sponsorship! We asked them to share their thoughts on HTTPS adoption here. Please join us in thanking Facebook for their support of Let’s Encrypt and our mission to encrypt the Web! - Josh Aas, Executive Director, ISRG / Let’s Encrypt If the web is more secure, everybody wins. A key technology for making this happen i

First reported Feb 12, 2019 00:00 UTCCatalog metadata updated Oct 08, 2026 03:55 UTCOpen evidence record
REPORT1 SOURCE

What It Costs to Run Let's Encrypt

Today we’d like to explain what it costs to run Let’s Encrypt. We’re doing this because we strive to be a transparent organization, we want people to have some context for their contributions to the project, and because it’s interesting. Let’s Encrypt will require about $2.9M USD to operate in 2017. We believe this is an incredible value for a secure and reliable service that is capable of issuing

First reported Sep 20, 2016 00:00 UTCCatalog metadata updated Oct 08, 2026 03:55 UTCOpen evidence record
REPORT1 SOURCE

Advanced Data Exfiltration Techniques with ChatGPT

During an Indirect Prompt Injection Attack an adversary can exfiltrate chat data from a user by instructing ChatGPT to render images and append information to the URL (Image Markdown Injection), or by tricking a user to click a hyperlink. Sending large amounts of data to a third party server via URLs might seem inconvenient or limiting… Let’s say we want something more, aehm, powerful, elegant and

First reported Sep 28, 2023 16:01 UTCCatalog metadata updated Oct 08, 2026 03:55 UTCOpen evidence record
REPORT1 SOURCE

ZDI-26-731: Foxit PDF Reader FileOpen Uninitialized Variable Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-91795.

First reported Sep 23, 2026 05:00 UTCCatalog metadata updated Oct 08, 2026 03:54 UTCOpen evidence record
REPORT1 SOURCE

ZDI-26-737: Foxit PDF Reader JPEG File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Foxit PDF Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 3.3. The following CVEs are assigned: CVE-2026-91808.

First reported Sep 23, 2026 05:00 UTCCatalog metadata updated Oct 08, 2026 03:54 UTCOpen evidence record
REPORT1 SOURCE

ZDI-26-740: Foxit PDF Reader PRC Stream Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-91811.

First reported Sep 23, 2026 05:00 UTCCatalog metadata updated Oct 08, 2026 03:54 UTCOpen evidence record
REPORT1 SOURCE

ZDI-26-743: Foxit PDF Reader JPEG2000 Parsing Memory Corruption Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-91815.

First reported Sep 23, 2026 05:00 UTCCatalog metadata updated Oct 08, 2026 03:54 UTCOpen evidence record
REPORT1 SOURCE

ZDI-26-687: Linux Kernel Open vSwitch Flow Delete Use-After-Free Information Disclosure Vulnerability

This vulnerability allows local attackers to disclose sensitive information on affected installations of the Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 6.4. The following CVEs are assigned: CVE-2026-80994.

First reported Sep 14, 2026 05:00 UTCCatalog metadata updated Oct 08, 2026 03:54 UTCOpen evidence record

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A filename, label, or report mention alone does not establish maliciousness. Observation dates describe cited sources; collection dates describe this local metadata catalog. No malware samples are stored, fetched, or executed by these pages.