September 28, 2011
On Wednesday, Facebook acknowledged the three cookies contained personally identifiable data, as revealed by Australian researcher Nik Cubrilovic in a blog post earlier in the week.
“Like every site on the internet that personalises content and tries to provide a secure experience for users, we place cookies on the computer of the user,” the company said in a statement. “Three of these cookies on some users’ computers inadvertently included unique identifiers when the user had logged out of Facebook.”
“We fixed the cookies so that they won’t include unique information in the future when people log out,” it added.