Facebook Is Using You

LAST week, Facebook filed documents with the government that will allow it to sell shares of stock to the public. It is estimated to be worth at least $75 billion. But unlike other big-ticket corporations, it doesn’t have an inventory of widgets or gadgets, cars or phones. Facebook’s inventory consists of personal data — yours and mine.

Facebook makes money by selling ad space to companies that want to reach us. Advertisers choose key words or details — like relationship status, location, activities, favorite books and employment — and then Facebook runs the ads for the targeted subset of its 845 million users. If you indicate that you like cupcakes, live in a certain neighborhood and have invited friends over, expect an ad from a nearby bakery to appear on your page. The magnitude of online information Facebook has available about each of us for targeted marketing is stunning. In Europe, laws give people the right to know what data companies have about them, but that is not the case in the United States.    Full article

Stanford Researcher Finds Lots of Leaky Web Sites

The Web is porous. Remarkable information trickles in from everywhere. It also sometimes spills out without its users knowing exactly where or how.

Take for instance these findings, released on Tuesday by computer scientists at Stanford University.  If you type a wrong password into the Web site of The Wall Street Journal, it turns out that your e-mail address quietly slips out to seven unrelated Web sites. Sign on to NBC and, likewise, seven other companies can capture your e-mail address. Click on an ad on HomeDepot.com and your first name and user ID are instantly revealed to 13 other companies.

These findings, released by the Center for Internet and Society at Stanford Law School, are among the leaks found on 185 top Web sites. They serve to buttress what privacy advocates have long warned of: Your online travel — your clickstream, as it’s poetically known — is not always anonymous. It can often be traced right back to rather precise parts of you, including your name and e-mail address. The study was released at an event organized by the Center for Digital Democracy in Washington. Full story

iPhone keeps record of everywhere you go

Security researchers have discovered that Apple’s iPhone keeps track of where you go – and saves every detail of it to a secret file on the device which is then copied to the owner’s computer when the two are synchronised.

The file contains the latitude and longitude of the phone’s recorded coordinates along with a timestamp, meaning that anyone who stole the phone or the computer could discover details about the owner’s movements using a simple program.

For some phones, there could be almost a year’s worth of data stored, as the recording of data seems to have started with Apple’s iOS 4 update to the phone’s operating system, released in June 2010.

Full story from The Guardian (UK)

Another Controversial Google Move

For many of its users, Google offers Web search results that are customized based on their previous search history and clicks. For example, if someone consistently favors a particular sports site, Google will put that site high in the results when they look up sports topics in its search engine.

But there has always been one catch: people had to be signed in to a Google account to see such customization.

On Friday Google said it was extending these personalized search results, and the resulting improvement in ad targeting, to people who are not logged into the service.  Full article