New Web technology would let you track how your private data
is used online.
By now, most people feel comfortable conducting financial
transactions on the Web. The cryptographic schemes that protect online banking
and credit card purchases have proven their reliability over decades.
As more of our data moves online, a more pressing concern
may be its inadvertent misuse by people authorized to access it. Every month
seems to bring another story of private information accidentally leaked by
governmental agencies or vendors of digital products or services.