Facebook engineer Gregg Stefancik denied that the company tracked users in a comment on Cubrilovic's blog post. Stefancik said that Facebook alters — but does not delete — cookies when users log out. But he says Facebook does that as a safety measure and does not use the cookies to track users or sell their personal information.
In a statement, Facebook said the logged-out cookies are used to identify spammers and phishers and detect when an unauthorized person is trying to access a user's account, among other things.
Tim Whitlock, chief technology officer and co-founder of Brandfeed, a company that helps promote brands, said users should think through the consequences of sharing personal information on Facebook.
"Most people understand that sites like Facebook are free to use for a reason. It's not because Mark Zuckerberg loves you, it's because Facebook and its peers make money from your data and from your eyeballs," Whitlock wrote. "We need to start thinking beyond what our data is currently used for … and wonder what else the information we hand over today might be used for tomorrow."
In a statement, Facebook said the logged-out cookies are used to identify spammers and phishers and detect when an unauthorized person is trying to access a user's account, among other things.
Tim Whitlock, chief technology officer and co-founder of Brandfeed, a company that helps promote brands, said users should think through the consequences of sharing personal information on Facebook.
"Most people understand that sites like Facebook are free to use for a reason. It's not because Mark Zuckerberg loves you, it's because Facebook and its peers make money from your data and from your eyeballs," Whitlock wrote. "We need to start thinking beyond what our data is currently used for … and wonder what else the information we hand over today might be used for tomorrow."
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