Sunday, April 5, 2009

Facebook public search reveals lots of information

A new paper about mining search engines for facebook data shows that user's ignorance and poorly designed privacy control can reveal lots of information about the users.

The researchers used a kind of social graphs that revealed some interesting information such as:
- Finding the most popular users in a network
- Cluster the users into highly-connected subgroups

This information can be use by marketers to target a small set of users with high influence to reach the entire network.
And if an attacker can compromise a small dominating set, he can reach out to the whole network.

They have found that compromising 10% of the users, can lead to compromise more than 50% of messages in that network.

http://www.cl.cam.ac.uk/~jcb82/8_friends_paper.pdf

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