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PC World - Security concerns over Facebook have been raised yet again after a security consultant collected the names and profile URLs for 171 million Facebook accounts from publicly available information. The consultant, Ron Bowes, then uploaded the data as a torrent file allowing anyone with a computer connection to download the data.
Simon Davies a representative of the U.K.-based privacy watchdog Privacy International accused Facebook of negligence over the data mining technique, according to the BBC. Facebook, however, told the British news service that Bowes actions haven't exposed anything new since all the information Bowes collected was already public.
So what are the security risks? Should you be concerned? Let's take a look.
What data was collected?
Ron Bowes, a security consultant and blogger at Skull Security, used a piece of computer script to scan Facebook profiles listed in Facebook's public profile directory. Using the script Bowes collected the names and profile URLs for every publicly searchable Facebook profile. All together, Bowes said he was able to collect names and Web addresses for 171 million Facebook users. That's a little more than a third Facebook's 500 million users.
What did he do with the data?
Bowes compiled this list of text into a file and made it available online as a downloadable torrent.
How many people have downloaded the torrent?
The Pirate Bay lists 2923 seeds and 9473 leechers for the torrent file at the time of this writing. Seeds are people who have downloaded the entire file and are uploading to others. Leechers are actively downloading the file.
Is this a big deal?
That depends on who you ask. Facebook points out that some of the data Bowes collected was already available through search engines like Google and Bing. The entire data set is also available to any user signed into Facebook. So the data was already publicly available, and nobody's private Facebook data has been compromised. Nevertheless, this is the first time that 171 million Facebook profile names have been collected into one set of files that can be easily analyzed and searched by anyone.
What could a malicious hacker use the data for?
As Bowes pointed out in a blog post, someone could use this data as a starting point to find other publicly available user data on Facebook. After all, you have to wonder how many of these 171 million Facebook users have publicly exposed e-mail addresses, phone numbers and other information on their profiles?
It has been proven time and again that the more a bad guy knows about you the greater your security risk is. Collecting personal data allowed a French hacker to steal confidential corporate documents at Twitter. Researchers were alarmed when Netflix wanted to release anonymous user data including age, gender and ZIP code for the Netflix Prize 2. Security researchers said the data dump by Netflix was irresponsible since it is possible to narrow down a person's identity just by knowing their age and ZIP code. The contest was eventually canceled. One Carnegie-Mellon study also found a flaw in the social security numbering system that could allow a sophisticated hacker using data mining techniques to uncover up to 47 social security numbers a minute.
Originally published on www.pcworld.com. Click here to read the original story.