The Credit Chip has caught on, but it has serious consequences in regard to privacy since CenBank then has a record of every purchase an individual has made: every book purchased, every virtual reality program rented, every place traveled, every meal eaten out. This is analogous to having a corporation video-recording every move that is made. It is feared that the CenBank sells information from its individual data cache back to participating governments and their intelligence agencies. Naturally, wherever this system is in place, a thriving black market based on barter and hard currency results.