Facebook tracks Android users via apps, even if they aren’t Facebook users.

How Facebooks Tracks Non-Users via Android Apps by Tom Spring

“The reason we focused on Facebook, and not Google or any of the other tracking companies, is because the very fact that apps – like a period tracker or an LED flashlight [app] – share data with Facebook will come as a surprise to many people. And, especially for those who have made a conscious decision not to be on Facebook,” said Frederike Kaltheuner, researcher with Privacy International, during her talk on Saturday.

Facebook tracks Android users via apps, even if they aren’t Facebook users.

How Facebooks Tracks Non-Users via Android Apps by Tom Spring

“The reason we focused on Facebook, and not Google or any of the other tracking companies, is because the very fact that apps – like a period tracker or an LED flashlight [app] – share data with Facebook will come as a surprise to many people. And, especially for those who have made a conscious decision not to be on Facebook,” said Frederike Kaltheuner, researcher with Privacy International, during her talk on Saturday.

I would have thought the Android OS privacy feature would mitigate this risk. I guess not.