Panos Papadopoulos, 28, is the co-founder of BugSense, which makes a service to track bugs in mobile phone applications. He also mentors other young entrepreneurs at CoLab, a business incubator in Greece.
Several Web browsers, including Mozilla's Firefox, enable users to request additional privacy online via a "do not track" button. But there's no consensus on how much privacy the button should offer users.
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