Technology WhatsApp Uses Rust to Block Malware on 3 Billion Devices by Anika Shah - Technology February 12, 2026 by Anika Shah - Technology February 12, 2026 WhatsApp’s engineering team has rewritten its media handling library in Rust, cutting the codebase from 160,000 lines of C++ down to 90,000 lines while adding memory safety protections. The library … 0 FacebookTwitterPinterestEmail