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by jasonellis
3011 days ago
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It's considered a shadow profile because they create a profile that nobody can see that aggregates data about the user. It's more than just the mutual contacts. When people upload their contacts to Facebook to "find friends by phone or email" Facebook takes the phone numbers and email addresses of people who do not have Facebook accounts and associates them with a shadow profile. If multiple people upload contacts and have this same phone number and email address of a person, they can associate any other data uploaded (obviously name, birthday, address, other social media profile URLs?) with the same shadow profile. When the person creates an account using an email address or phone number tied to the shadow account, they already have a reasonable amount of data on the peson, including every user who has them in their contacts and others on those social graphs so that they probably know what school the user went to and current/past employers. |
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