Mullvad Releases Rust-Based WireGuard GotaTun, Crash Rate Plummets by 99%

Mullvad VPN recently announced the launch of GotaTun, an innovative WireGuard implementation written entirely in Rust. This project emerged from challenges with the previous wireguard-go implementation, which was responsible for over 85% of crash reports, particularly on the Google Play Store. By leveraging Rust’s secure multithreading and zero-copy memory strategies, GotaTun not only resolves the crash issues but also significantly enhances performance. Since its deployment to Android users in November 2025, the crash rate has plummeted from 0.40% to 0.01%, with users reporting positive feedback, including faster speeds and reduced battery consumption. Mullvad plans to extend GotaTun to all platforms, including desktop and iOS, in 2026, and will conduct a third-party security audit. This initiative not only improves the reliability of the VPN service but also demonstrates the potential of Rust in the cybersecurity domain.

Original link:Hacker News

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