xChange is based on RUST, the most secure programming language to date. Rust is a systems programming language designed to be safe, concurrent and practical. It is similar to C++ with emphasis given to thorough memory management which protects against many common errors in programming. Rust is currently faster than Java and Go programming languages and continues to improve. Rust Safety: Rust uses a powerful static code analyzer and type system inspired by functional programming languages to assure execution safety. Rust Performance: Rust is a Top-3 fastest programming language together with C++ and C. Rust is also predictable in its use of resources (CPU, memory, I/O, etc).