Facebook eventually made more information about the data breach we mentioned end of September. All we knew then about the violation was that it may have affected up to 50 millions of users.
Today, after the new social networking announcement, we know approximately what information the attackers had access to, and the number of people affected.
According with Guy Rosen VP of Facebook Product Management who paradoxically pretends to be in charge security:
Today we know that fewer people have been affected than we originally thought. From 50 millions of people who believed that access tokens had leaked, about 30 millions were actually affected.
Attackers apparently used some kind of automated method to get the token access from the friends of the accounts they had already violated. Eventually they managed to obtain 30 million access tokens instead of the initially reported 50 million.
According to Rosen:
The attackers stole it name και τα στοιχεία επικοινωνίας από 29 εκατομμύρια χρήστες. Στα στοιχεία αυτά συμπεριλαμβάνονται τηλεφωνικοί αριθμοί και διευθύνσεις ηλεκτρονικού post officeh. The attackers were able to obtain from the 14 million users (14 million out of 29) more details such as gender, religion, device types, birthdays, last geo-locations, who and what they follow and most recent searches.
There were also 1 million lucky guys that the attackers did not touch their data.
Rosen also clarified that this particular breach only affected Facebook and not the Instagram, the Whatsapp or other company applications. According to TechCrunch, the company is cooperating with the FBI, and they are not allowed to release who they believe may be behind the attack.
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