Giant corporations were enviable and powerful presences, having strong control within their respective territories, with all other businesses depending on them for survival.
And rare technologies like Digital Mind were only in the possession of these giant corporations. Even if other ordinary businesses managed to steal such technologies, they would find it difficult to use them, as they wouldn't have access to the matching skill profiles. Without these, they couldn't implant the necessary knowledge into their employees' minds, making such technological barriers almost insurmountable.
Xu Yang was the same; he not only owned Digital Mind but also had neural training ingrained in his brain, coupled with years of work experience. It was the combination of these three factors that constituted his level as a neural hacker.