I study security, researching both technical aspects of cryptography and the human element in large systems like the Internet. I've enjoyed learning how security can go wrong, from lock-picking to the difficult economics of privacy online. I'm passionate about using computers as an empowering technology, enabling privacy, free speech, free access to information, and transparency in public authorities. My thesis work focused on the increasing difficulty of establishing identity in an interconnected world of many digital devices. Since my time in Cambridge I've worked at Google and the Electronic Frontier Foundation and been a postdoctoral researcher at Stanford University and Princeton University.