According to one embodiment, an electronic apparatus includes an association process performing unit and a password verification unit. The association process performing unit performs an association process to share a unique key between a host device and the electronic apparatus through a wired-connection between the host device and the electronic apparatus. The password verification unit performs a password verification process to determine whether a password stored in the electronic apparatus and a password transmitted from the host device through the wired-connection coincide with each other before the association process is performed, and permits the association process to be performed when both the passwords coincide with each other and inhibits the association process from being performed when both the passwords do not coincide with each other and inhibits the association process from being performed when the both passwords do not coincide with each other.