Rust

Rust is a programming language designed for low-level software such as operating systems. It runs as fast as C or C++, and its defining feature is that it catches many memory mistakes at the compile stage.

Memory errors have long been a main cause of security vulnerabilities, and as demand grew to reduce them, Rust began to get attention. In recent years more large pieces of software have been moved to Rust from other languages, and it is used more and more in real work.

Rust uses rules called ownership and borrowing, so the compiler keeps track of who uses a value and when. Code that breaks the rules is rejected before the program runs. This reduces problems such as reading memory that has already been freed.

It cleans up memory automatically without a garbage collector, so there tend to be fewer pauses while the program runs. This makes it a good fit for servers and for software built into devices, where performance matters.

It is used in areas that need both stability and speed, such as web servers, data processing engines and parts of operating systems. It can also connect with existing C and C++ code, which makes it easy to move over step by step.

Rather than rewrite a large codebase all at once, a company may move one module at a time so that releases do not stop. You should also count the time the team needs to learn the language's rules, and the cost of that learning.

Rust does not stop every security problem. Logic errors, badly designed permissions and failures to check outside input can still happen.

Many people say it is hard to learn, and for quick development or simple scripts another language is often a better fit. If you apply the statement that it is fast to every situation, you will be misled.

It is like checking a building's blueprint with structural calculations before construction, so that you find the places that would collapse ahead of time.

To put AI features into many products, the engine that runs them has to be fast and safe. If you know Rust, you can understand why people pick a technology that takes performance and security into account together.