Researchers found a way to trace Bitcoins back to their owners. In a new study researchers were able to find the IP-addresses of Bitcoin users. They did so with success rates of 11 to 60 percent.
Bitcoins should usher in a new era of electronic payments by allowing payments which are not subject to government control. However recent studies have shown that the anonymity part of the up-and-coming digital currency system has not been completely established yet.