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Re:TikTok vs. Douyin: A Security and Privacy Analysis by gruez on Wednesday March 24, 2021 @02:56PM (#26571490)
>They say that they didn't see contacts getting uploaded without permission.

Further down in the report they say it never uploads contacts.

> Neither Douyin nor TikTok (Musically) seemed to upload contact lists, photos, or user files.

Re:TikTok vs. Douyin: A Security and Privacy Analysis by yorwba on Wednesday March 24, 2021 @07:48PM (#26574621)
I guess that means they didn't try to find other users from their contacts, didn't set a profile picture and didn't post any videos.