Several significant data breaches have occurred over the last several days, and some criminal activity using previously stolen data has also occurred very recently -- a reminder to users security on e-commerce sites is not solely in the hands of the merchant. Yahoo Voices experienced a break-in with more than 400,000 email and plain-text password combinations were leaked onto the internet. Additionally, Android news and community site Phandroid's million-strong user information database is potentially out in the open as well. Best Buy is currently seeing user credentials farmed from previous b