Memory Safety

for the Internet's most critical infrastructure


From our blog

July 17, 2024

A new home for memory safe sudo/su

Sudo-rs, an open source memory safe implementation of sudo/su, has a new long-term home at the Trifecta Tech Foundation.

June 24, 2024

More Memory Safety for Let’s Encrypt: Deploying ntpd-rs

NTP is critical to how TLS works, and now it’s memory safe at Let’s Encrypt.

June 13, 2024

Encrypted Client Hello (ECH) Support for Rustls

Adding a TLS extension that allows clients to encrypt their Client Hello

May 9, 2024

Providing official Fedora Linux RPM packages for ntpd-rs and sudo-rs

Memory safe NTP and sudo are now in Fedora Linux.

May 8, 2024

Rustls Gains OpenSSL and Nginx Compatibility

Nginx users can easily switch from OpenSSL to Rustls for better security.

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!

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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:

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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
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Tax ID #:46-3344200

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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.