https://android.stackexchange.com/questions/214288/how-to-stop-apps-writing-to-android-folder-on-the-sd-card/
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。PDF资料对此有专业解读
The company said direct messages are still protected with standard encryption, similar to services like Gmail. Only authorized employees can access direct messages, and only under specific circumstances, such as in response to a valid law enforcement request or a user report of harmful behavior.
and we probably don't want to count that as "snoozing the stream". More on