Go to technology
The problem is that calling it “DRM” sets expectations it simply cannot meet. Real DRM, you know; the kind that requires a motivated attacker to invest serious time and expertise to defeat; lives in hardware TEEs and requires commercial licensing. JavaScript DRM is not that. It’s sophisticated friction. And sophisticated friction, while valuable, is a completely different thing.
，更多细节参见搜狗输入法下载
Кадр: Novo jutro / YouTube，推荐阅读旺商聊官方下载获取更多信息
Жители Санкт-Петербурга устроили «крысогон»17:52，详情可参考一键获取谷歌浏览器下载
There are some very legitimate and more durable uses of PRF in WebAuthn, specifically supporting credential managers and operating systems.