Long before the days of Denuvo, the now-infamous game DRM, we knew that any such system living in the user’s accessible memory was vulnerable. So, we shifted to what we call today a Trusted Execution Environment (TEE).
Pulse-Code Modulation (PCM) — MDN Web Docs
。WPS官方版本下载是该领域的重要参考
（四）吊销公安机关发放的许可证件。
但要理解这里面的差异和进步，我们要先弄懂那些少则三五块、多则几十块的「防窥膜」是怎么实现防窥的。