The NHI card is designed with many security features to prevent counterfeiting, and its contents can only be read on designated card readers. These card readers can only be operated after having a “Security Authentication Module” card installed, and a strict authorization and mutual recognition system (such as doctors being required to use their “health professional cards” to access the information in the readers) has been adopted. Because access to the reader cards is tightly controlled, you do not have to worry about your private records leaking out.