Secure Unix ancestor KSOS did type safety before Rust made it cool

KSOS, a secure Unix ancestor built with Modula, implemented type safety decades before Rust popularized the concept. Its source code has resurfaced after nearly four decades, offering a historical look at early secure OS design principles that predate modern memory-safe languages.

Source: https://www.theregister.com/os-platforms/2026/07/06/secure-unix-ancestor-ksos-did-type-safety-before-rust-made-it-cool/5266458. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.