Facebook says a bug in its system caused six million users’ contact information to be inadvertently exposed.
The social media company said on Friday that a bug led to users’ contact information, such as email addresses or phone numbers, to be accessed by other users who either had some contact information about that person or some connection to them.
Facebook said in a blog post that the cause of the bug is ‘pretty technical’ but that the problem is tied to its ‘Download Your Information’ tool.
The company uses the information that users upload to better tailor the friend suggestions it issues.
The bug caused some of this information to be inadvertently stored in association with a person’s contact information as part of their Facebook account.
As a result, if someone downloaded an archive of their Facebook account through the ‘Download Your Information’ tool, they may have been provided with additional addresses or telephone numbers for their contacts or people with whom they have some connection. Because the contact information was provided by other people on Facebook, it was not necessarily accurate.
Facebook said it has fixed the problem and is in the process of notifying affected users via email.
The affected accounts represent only a fraction of the over one billion users on the social media site.
Facebook, which is headquartered in Menlo Park, California, said that it has no evidence the bug has been used maliciously and it has not received complaints.



Social Network Comments Fuel Offline Behaviour
Social networks are becoming a part of everyday life for many users, and their offline habits are affected by their participation.
In November 2010, the Pew Internet & American Life Project surveyed US social network users for the “Social Network Sites and Our Lives” report, released in June 2011, and found that 31% of social network users are on Facebook several times a day. Additionally, 21% of respondents use the site about once a day. This is followed by Twitter, which 20% of social network users check several times a day and 13% use about once a day.
As consumers use these social sites several times a day or week, they are also commenting on posts from friends just as often. The Pew study found that 26% of female Facebook users and 17% of male Facebook users comment on Facebook posts at least once a day. Further, the study found that 57% of female Facebook users and 48% of male Facebook users comment on posts at least once a week.
But social network users are not just responding on social media. The April 2011 “S-Net: The Impact of Social Media” study by ROI Research found that 60% of US social network users were at least somewhat likely to take action when a friend posted something about a product, service, company or brand on a social media site. Only 18% were not at all likely to take action.
The study doesn’t elaborate on what exactly respondents would do, but another question asked specifically what actions US social network users would be more likely to take after following a company or product on Facebook or Twitter. On Facebook, 53% of respondents said the top activities would be purchasing the brand or company’s product and recommending the company or product. For Twitter, the top activities were talking about the company or product (61%), recommending the company or product (59%) and purchasing the brand or company’s product (58%).
Fans or followers of a brand are influenced by what they see from these company accounts, but they are also influenced by what their friends say about brands or companies that they don’t necessarily follow. It’s another area for marketers to focus on—the reach they have and how their brand fans may influence their own friends and followers.
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