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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

Intent to End OCSP Service

Moving to a more privacy-respecting and efficient method of checking certificate revocation.

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Kristin Berdan joins ISRG as new General Counsel

Join us in welcoming Kristin Berdan to the ISRG team as our new General Counsel.

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White House, Craig Newmark Support Memory Safe Software

Growing attention on the solvability of memory safety.

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ISRG Projects

Free TLS Certificates

Let's Encrypt is a free, automated, and open Certificate Authority. More than 450 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 Preserving Application Telemetry

Divvi Up is a privacy preserving telemetry service. It enables application owners to gain insights into a user base while respecting users' individual privacy, eliminating the need to store PII for telemetry, and mitigating compliance risks.

Visit Divvi Up

Our Sponsors & Funders