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    Instructor / Research Faculty, CHIP, Harvard Medical School.
    Fellow, Center for Research on Computation and Society, Harvard University.
    Tech Advisor, Creative Commons.
    Affiliate, Harvard Berkman Center.

    I study security, privacy, and transparency, and I blog about it.
    I received a PhD from MIT's Cryptography and Information Security Group.


    I am the lead architect for the Indivo Personally Controlled Health Record, which gives you control over your health data, and the Gene Partnership Project, which lets patients know when a genomic research result applies to them.

    I design and implement the Helios Voting system. With Helios, you get a tracking number of your ballot so you can be certain it counted.

    Web security is fascinating. Check out BeamAuth and SessionLock.

    I chair the RDFa Task Force at the W3C. RDFa lets you embed structured data in HTML to make search engines and browsers smarter.

    I advise the StopBadware project, which helps monitor and tag software that does bad things to your computer.