White Hat Uses Foursquare Privacy Hole To Capture 875k Check-ins

In the pages of San Francisco Ferry Building,, Foursquare displays a grid of 50 pictures of random people who recently registered to post – no matter what your privacy settings. Then he built a custom Andersen scraper page has loaded for each place in Four Square San Francisco, looked for differences and put changes.Even while using an old computer running slow, but by the anonymous network Tor Andersen estimates recorded 70 percent of all check-in San Francisco for the past three weeks. When a new login occurs, the site includes photos of the person somewhere in the grid.


Andersen reported the violation of privacy Foursquare two Sundays ago – and the company acknowledged the error exists. The site has already enabled users to choose not to appear in the "Who is here and now" function, but until Tuesday after the button is applied to the classification of "Who is controlled .." They called a week or more to resolve the problem, and now, according to an e-mail sent to Alexander, the company is to change the privacy settings that users can choose to be listed on the Web page position.

Foursquare and other services as mentioned in TFA are not made to provide 100%. FS is not designed to facilitate the market or stalking, so that users are entitled to take stalkable by FS. They must be defined to prevent abuse and to be used only as they say they are for other soybean, people who want to do 100% of his private life out of the way they do.

(Most people complain that I saw Stalker Fourquare disseminate their confirmations to Twitter.). Now, I am sure that 99% Foursquare totally destroy his legitimacy as a game, because it keeps fit at any pressure (you look, Jesper Anderson), who babbles about your privacy without admitting that there is a tension between competition and privacy .

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