Leslie DEven 9 years ago it was far subtler than this article indicates. We could identify people by their unique browser settings, geolocate using IP addressesSee more, store every site visited and most purchases made at certain companies and build profiles of people’s behavior that leads to purchase. We could have matched to names because there are obscure companies that store your name with all identifying information such as browser settings or other obscure identifiers, plus everything in every cookie. The only limit to the data collected is computing power and the technical know how to manipulate massive data. Without privacy laws, we will never know the massive amount of data stored about our online and offline lives and how it is used to manipulate and control us, so far just for consumer behavior and election engineering- but what will someone think up next?
Chris MessinaGoogle has the same or similar data. It was always a challenge to figure out how to display data that you provided about someone (on their Google+ profileSee more) versus what they had contributed. We tried to make this clear by splitting it out but people found it hard to understand in practice.
Timo SalorantaEye opening article! It hasn't been well communicated or understood that Facebook combines the data you have told about yourself to what other peopleSee more have leaked about you from their address books. The fact that Facebook keeps all the address book entries uploaded forever has some very surprising, unwanted consequences; it can reveal connections between people without their consent.