They've done this to me as well. Months ago a conversation with a medical key word I have never used in my life led to that key word being added to my "interest

They've done this to me as well. Months ago a conversation with a medical key word I have never used in my life led to that key word being added to my "interests" on Facebook that evening (i groomed my interest tags to make FB more bearable at the time). That day I realised they must be listening somehow and uninstalled the FB app. Also, every time I add or update a phone contact on iPhone, I am asked to add my FB password - they are digging where they don't belong.