Security

Friendships can be inferred with 95% accuracy from call records and the proximity of users, says a new report. Researchers fitted 94 mobiles in the US with logging software to gather data. The results also showed that those with friends near work were happier, while those who called friends while at work were less satisfied. The data, published in Proceedings of the National Academy of Sciences, showed a marked contrast with answers reported by the users themselves.

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