Facebook identity theft dangers
Updated on 14 August 2007
Facebook users could be putting themselves at risk of identity theft by giving away personal details too easily, research suggests.
Two in five people who use the social networking sites revealed personal information to a stranger, according to a snapshot survey.
They gave email addresses, dates of birth, addresses and even phone numbers to an unknown user.
Technology firm Sophos set up a profile page on the website with a picture of a green frog called Freddi Staur - an anagram of ID fraudster.
Sophos then sent 200 "friend requests" to Facebook users from the frog. It got reactions from 87 people, of which 82 gave away some of their personal information.
Of the 41% of respondents who leaked personal details, 87% gave their education or workplace, 84% listed their dates of birth and 72% gave one or more email address. Nearly a quarter (23%) even listed their phone numbers, Sophos found.
Facebook users can either accept or reject incoming "friend requests". Users can also choose whether to let the sender see all their details or a limited part of their profile.
In most cases "Freddi" had access to the respondents' photos of family and friends, likes and dislikes, hobbies and other personal information.
Sophos senior technology consultant Graham Cluley warned: "What's worrying is how easy it was for Freddi to go about his business. He now has enough information to create phishing emails or malware specifically targeted at individual users or businesses, to guess users' passwords, impersonate them or even stalk them."
Some of the respondents who did not accept Freddi's friend request replied with messages such as "who are you?" and "do I know you?" Even these brief replies gave Freddi access to the respondents' Facebook profiles in most cases.
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