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Microsoft is Getting Rusty: A Review of Successes and Challenges - Mark Russinovich

Rust Nation UK · 46.4K views · 2025-02-26 · 34:41

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Overview

Mark Russinovich's closing keynote at Rust Nation UK on Microsoft's adoption of Rust, covering security gains, integration challenges, performance results and lessons learned.

On Hacker News

Cited for concrete claims about Microsoft's Rust adoption, such as speedups from rewrites and internal C to Rust translation efforts.

Discussed on HN; no positive recommendation is recorded in this export · HN mentions 2025–2026

Topics

C, C++, Rust, Go & systems languagesSecurity & hackingTech company stories & documentaries
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What people said

pjmlp · 2026-02 · Reference

You could have checked his conference talk as well, instead of downplaying the interview. "Microsoft is Getting Rusty: A Review of Successes and Challenges - Mark Russinovich" [VIDEO] The only Microsoft divisions that are still all are into C++ is Windows and XBox, and still, C++/WinRT is now in maintenace, the team has moved into windows-rs, WDK now has Rust bindings available.

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pjmlp · 2026-01 · Reference

If you watch "Microsoft is Getting Rusty: A Review of Successes and Challenges" it appears the whole effort is more on the Azure side, and besides some timid adoption like GDI regions, there is a lukewarm adoption of Rust on Windows side, still pretty much a C and C++ feud. [VIDEO]

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pjmlp · 2025-12 · Reference

Well, it is kind of in line with company official communication anyway, so this goal is currently a business target, > Decades of vulnerabilities have proven how difficult it is to prevent memory-corrupting bugs when using C/C++. While garbage-collected languages like C# or Java have proven more resilient to these issues, there are scenarios where they cannot be used. For such cases, we’re betting on Rust as the alternative to C/C++. Rust is a modern language designed to compete with the performance C/C++, but with memory safety and thread safety guarantees built into the language. While we are not able to rewrite everything in Rust overnight, we’ve already adopted Rust in some of the most critical components of Azure’s infrastructure. We expect our adoption of Rust to expand substantially over time. -- [LINK] > And, in alignment with the Secure Future Initiative, we are adopting safer programming languages, gradually moving functionality from C++ implementation to Rust. -- [LINK] > We will accelerate and automate threat modeling, deploy CodeQL for code analysis to 100 percent of commercial products, and continue to expand Microsoft’s use of memory safe languages (such as C#, Python, Java, and Rust), building security in at the language level and eliminating whole classes of traditional software vulnerability. -- [LINK] So naturally, there are many people that besides AI KPIs, now have to match their SFI KPIs at Redmond, including Mark Russinovich. "Mark Russinovich, Microsof

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Sources

Video by Rust Nation UK, played through YouTube.

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