> By blocking the heavily encrypted WhatsApp service while making less secure applications like WeChat available to the public, the Chinese government has herded its internet users toward methods of communication that it can reliably monitor. How could they possibly monitor millions of messages sent per hour? Even if they have some ML / Bot, what are the odds that they'll miss some protest, or plot??
Do they need 100% accuracy for it to be effective? Nothing of this sort is, and that's accepted as part of using it. Of course people work to minimize false positives and false negatives, but it's understood that they can't be reduced to 0.