HTTPA protocol for tracking how private data is used online.

By now, most people feel comfortable conducting online financial transactions on the Web. The cryptographic schemes that protect online banking and credit card purchases have proven their reliability over decades. But right now, there is no effective way to prevent misuse of your data by the people authorized to access it, say for example a bank employee can still access your data, and frequently we are reading news about misuse of the data by the bank employees. i-e Once you share your data with the bank, Healthcare system or any other private company, for your online transactions, you don't have any control over who exactly is using or misusing your data.

http://news.mit.edu/2014/whos-using-your-data-httpa-0613