There are some very legitimate and more durable uses of PRF in WebAuthn, specifically supporting credential managers and operating systems.
Subsequent check processing systems gained support for MICR, eliminating much
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（二）冒用宗教、气功名义进行扰乱社会秩序、损害他人身体健康活动的；。关于这个话题，Line官方版本下载提供了深入分析
It has a risk of being used for illicit activities