Facebook Fights Spam with the Authentic Social Graph
Facebook has devised an interesting and people-centric approach to fighting spam.
By giving out @facebook.com email addresses to all users, the company could have opened up potentially disastrous issues with spam. The first part of a users’ email address is their vanity URL address or http://www.facebook.com/name. Because those URLs are crawlable, that means bots will easily be able to find millions of email addresses to spam.
However, Facebook is confronting this by using the social graph — only people who are a user’s friends or friends of friends can e-mail them.
If a person not connected to a user e-mails them, it will go to the ‘Other’ part of the inbox.
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