Some third parties use the Facebook Login feature to authenticate users across many websites.
However, hidden third-party trackers can also use Facebook Login to deanonymize users for targeted advertising.
This unintended exposure of Facebook data to third parties is not due to a bug in Facebooks Login feature.
But this shortcut might mean users are handing over significantly more information than intended.
The researchers found seven scripts collecting Facebook user data using the first partys Facebook access.
We have identified the source of the script and shut it down.
source: www.techworm.net
