Most people with the proliferation of smartphone holds a smart phone. In addition, the FinTech has
developed a user coming age that can easily pay using a smartphone without a purse. However, this
convenience and security of the effort to compensate for weak security, because it is necessary to inverse
relationship. If user's smartphone is attacked by hackers or lost equipment and payment behavior has
occurred, the introduction of transaction detection system that can detect when more than this abnormal
behavior occurs, this is urgent. Accordingly, the paper proposes a way to apply the above transaction
detection system using the location-based information.