Whether buying a bottle of wine, making an online purchase or going to a movie, most of us share far more information than is necessary: birthdates, credit card numbers, addresses. At a time when our personal information is at risk every day, cryptographer Dr. Maria Dubovitskaya is part of a team which has designed a system that shares only what’s absolutely necessary while closely guarding the rest.

https://www.ted.com/talks/maria_dubovitskaya_take_back_control_of_your_personal_data