Facebook reveals its tracking secrets

By Bizclik Editor

A US-based newspaper reporter finally answers the question of Facebook analytics: how does the social media giant keep tabs on its 800 million users?

Mashable reports.

Data about web searches and browsing habits could be used to figure out political affiliations, religious beliefs, sexual orientations or health issues about consumers. According to USA Today, this type of correlation doesn’t seem to be happening on a wide scale, but the concern of some privacy advocates is that selling data could become a tempting business proposition — both to social networks like Facebook and online advertising players such as Google, Microsoft and Yahoo that similarly employ cookie tracking techniques.

Facebook told USA Today that it uses data collected via cookies to help improve security and its plugins and that it has no plans to change how it uses this data. It has, however, applied for a patent on a technology that includes a method that correlates ads and tracking data.

“We patent lots of things, and future products should not be inferred from our patent application,” Facebook corporate spokesman Barry Schnitt told USA Today.

Regardless of how Facebook is handling the data it collects through cookies, by doing so it has entered a very sticky debate about whether consumers should be able to opt out of being tracked by such methods. A proposed law that would create this option was introduced in February.

While a recent poll found that about 70% of Facebook users and 52% of Google users were either somewhat or very concerned about their privacy, some argue that online commerce would suffer without online tracking.

  • Facebook doesn’t track everybody the same way. It uses different methods for members who have signed in and are using their accounts, members who are logged-off and non-members.
  • The first time you arrive at any Facebook.com page, the company inserts cookies in your browser. If you sign up for an account, it inserts two types of cookies. If you don’t set up an account, it only inserts one of the two types.
  • These cookies record every time you visit another website that uses a Facebook Like button or other Facebook plugin — which work together with the cookies to note the time, date and website being visited. Unique characteristics that identify your computer are also recorded.
  • Facebook keeps logs that record your past 90 days of activity. It deletes entries older than 90 days.
  • If you are logged into a Facebook account, your name, email address, friends and all of the other data in your Facebook profile is also recorded.

This data was compiled by Byron Acohido through interviews with Facebook engineering director Arturo Bejar, Facebook spokesman Andrew Noyes, Facebook corporate spokesman Barry Schnitt and Facebook engineering manager Gregg Stefancik.

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