Memory safety for the Internet's most critical infrastructure



Let's get the Rustls TLS library ready to replace OpenSSL in as many projects as possible.

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Let's create a memory safe, high performance, fully recursive DNS resolver.

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From our blog

March 9, 2023

A Safer High Performance AV1 Decoder

Memory safety for a major source of exploitable vulnerabilities.

March 8, 2023

Klint: Compile-time Detection of Atomic Context Violations for Kernel Rust Code

The klint tool will help facilitate adoption of Rust in the Linux kernel.

January 31, 2023

Improving Rust compile times to enable adoption of memory safety

Guest author Rémy Rakic discusses his work to improve Rust compiler performance.

January 26, 2023

Assessing Progress on Memory Safety at USENIX Enigma Conference

A reflection on the lively conversation about challenges and opportunities to improve memory safety.

December 5, 2022

A Year-End Letter from our Executive Director

It's been an exciting year for ISRG and its projects: from Let's Encrypt issuing its three billionth certificate to Prossimo supporting the efforts to get Rust into the Linux kernel.

Get Involved

Being part of ambitious work like Prossimo is easier than you might think: 100% of our funding comes from charitable donations from companies and people like you.

When you support Prossimo, you’re helping to create a future for the Web that is more memory safe and more secure - and that benefits everyone using it!


Bring greater security to your organization by advocating for memory safe code in your organization!

Many organizations match donations to nonprofits made by employees. Check if your organization has a matching program and double your impact!

See if your organization has a matching program

Prossimo works to connect maintainers behind the Internet's most critical pieces of software with the people and organizations who want to see Internet security move forward by adopting memory safe languages. Here's the simple framework of how Prossimo works:

  1. Identify an initiative that's a good fit for Prossimo
  2. Seek funding for the initiative
  3. Commence the initiative

By funding, you can support this important work!

Contact us to learn about upcoming Prossimo initiatives:

Support this Work

Donations of Stock

Appreciated securities or mutual fund shares that you’ve owned for more than one year can be excellent charitable gifts.

Brokerage Firm:Vanguard
Account Name:Internet Security Research Group
ISRG Account #:44865458
DTC #:0062
Tax ID #:46-3344200

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Gifts of Cryptocurrency

We accept BTC, BCH, ETH, DOGE, WBTC, and all other currencies supported by BitPay. We are able to accept donations equivalent to $1,000 USD or greater. Please email for invoicing.

Donor Advised Funds

Recommend a donation to Internet Security Research Group (our parent org) from your gift fund. 100% of your donation will go to support a secure and privacy-respecting Internet.