Unverified50% confidenceFactExact time
Probabilistic matching by data brokers infers whether data records belong to the same user by analyzing signals such as device fingerprints, IP addresses, and behavioral patterns, with accuracy typically ranging from 85% to 95%.
1
Sources
50%
Confidence
Long-term
Relevance
8/30/2026
First Seen
Sources
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Unverified德克萨斯大学奥斯汀分校2013年发表于《自然》杂志的研究表明，在移动数据集中仅需4个时空锚点就足以以95%精度唯一识别一个个体，即便数据已匿名化64% similarUnverifiedDevice fingerprint technology collects dozens of parameters including hardware information, OS version, and browser characteristics to generate unique identifiers for tracking user identity.62% similar
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