Patent ID: 7979050

Claim:
A portable electronic apparatus having a position notifying function, comprising: a position detecting unit which detects a position of the portable electronic apparatus; a sending unit which sends position information indicating the position detected by the position detecting unit; a power off instructing unit which instructs switching off a power of the portable electronic apparatus; an authenticating unit which authenticates a user; a controlling unit which performs control such that the authenticating unit authenticates the user when the power off instructing unit instructs switching off the power, and the position detecting unit and the sending unit continue operating in a case where a result of authenticating coincides with a predetermined condition; a continual alerting unit which notifies that authentication ends in failure, continually by an alert, when the authenticating unit fails in authentication; and an alert stopping unit which alert by the continual alerting unit, wherein in a case where the alert is not stopped by the alert stopping unit in a predetermined period after the continual alerting unit starts continual alerting, a notification is given to a pre-registered destination.