Unverified50% confidenceFactExact time
Opt-out机制指平台默认将符合条件的用户数据纳入使用范围，用户需主动关闭；Opt-in机制则默认不参与、需主动加入
1
Sources
50%
Confidence
Long-term
Relevance
7/12/2026
First Seen
Sources
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