Sometime in our recent past, technology made leaps to areas the Law has not addressed. The law was struggling to define the contours of the doctrine of privacy even before technology upped the ante. Considerations of privacy like the concepts of insider trading and front-running in the financial markets address behaviors that technology has far outpaced-with new behaviors our laws are not equipped to address. Privacy is a complex issue and like Big Data, its meaning even as we unthinkingly presume to understand it, is in a period of rapid change.