More complicated than that --- Bennette, I'd say that an "universal cyberweapon" really is more on the realm of fiction than reality. To put it more concretely, we have millions or billions of machines today running multiple versions of Windows, Android, iOS, MacOS, Linus and many other options. There are machines that run on highly customized software, too, and the list goes on. Creating a "cyberweapon" for any of those requires specific attention. These systems, to put it simply, speak completely different languages and have different structures with their own vulnerabilities. So the idea of making a cyberweapon that affects all of them is so complex, so many times more difficult than even the most sophisticated malwares, that it really might as well be fiction.

Source author: Gustavo Paiva gdp.direito@gmail.com