Internet Security Research Group

Digital infrastructure for a more secure and privacy-respecting world. Read all about our nonprofit work this year in our 2023 Annual Report.

From our Blog

Our first FOSDEM

FOSDEM lets an often overlooked part of tech and software shine: the people behind it.

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Public benefit Internet infrastructure is not a “one-and-done” project

ISRG’s Board Chair reflects on our financial support.

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A Year-End Letter from our Vice President

A summary of how ISRG’s three projects, Let’s Encrypt, Divvi Up, and Prossimo continue to improve security and privacy.

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ISRG Projects

Free TLS Certificates

Let's Encrypt is a free, automated, and open Certificate Authority. More than 260 million websites around the world use Let's Encrypt certificates to provide security and privacy to their visitors.

Visit Let's Encrypt

Memory Safety for Critical Infrastructure

Prossimo is an effort to move the Internet's security-sensitive software infrastructure to memory safe code. We provide strategic planning, facilitation, and communication to bring memory safety to high impact projects.

Visit Prossimo

Privacy-respecting Application Metrics

Divvi Up is a privacy-respecting system for the collection of aggregate statistics such as application metrics. With Divvi Up, it's possible to technically enforce the promises of a privacy policy while still getting the valuable aggregate insights app makers need.

Visit Divvi Up

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