metallicAhh

How does Facebook know who's on my twitter?

Facebook has starting recommending I should add a lot of people who are on my twitter. How does it know who I'm following?!?

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JanSt / MOD  Nov. 3, 2014 at 12:10

Your email address, your Twitter handle, contacts in your address book. General cyber-stalking, really. ;)

I don't use Facebook.
But I also do not use the same email address for any 2 services.
And I'd never share my phone's or PC's address book with Twitter or Facebook.
But those who do... easy to put it all together.

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