by Muhammad Aurangzeb Ahmad
The television series Person of Interest posits the existence of a machine that can monitor every person’s daily activities and can then use this information to predict crimes before they happen. While such a system may be way off in the future, a system that can at least identify the identity of any person may not be that far off. Annonymity used to be private affair, if one wished to remain anonymous then all that one had to do was to lay low and limit one’s interactions with outsiders. It was easier to adopt pseudo-identities, the nature of the internet even facilitated this to a greater extent. I should know this because I have been blogging as a Chinese Muslim for almost 10 years now. New waves of technologies aided by Big Data however are changing nature of anonymity with evermore levels of sophistication needed to be truly anonymous.
Even in the ideal case where John Doe disengages from the digital world i.e., does not own a smart phone, only carries cash, does not use any online service etc, others can still leak information about John e.g., pictures that his friends might put up on social media platforms, post something on Facebook, geo-tag one another etc. Locating a person, determining their likes or dislikes would really depend upon how much information their family and friends are leaking about them. In short you are only as anonymous as your most chatty friend.
In cases where we think that we are not giving away any explicit information about ourselves, much can be inferred from the digital traces that we leave. The manner in which we shop online, respond to messages, play video games etc can reveal a lot about ourselves even when we do not want to reveal anything. In our previous work we have observed that it is possible to predict a person’s gender, age, personality, marital status and even political affiliation by just studying at how they play video games. This is just the top of the iceberg; a case in point is the case where Target’s data analytics were able to infer that a girl is pregnant even though she was able to hide this from her parents.
