Nec Corporation

Hidemi Ishikawa

Toshiyuki Tamura

Kazuaki Nakajima

Masakazu Inoue

Shinji Masuda

Masayuki Shinsho

Chikara Takauji

Tomoko Ikawa

An object is to provide a monitor device capable of reducing threat of DoS attacks on a mobile network. A monitor device () according to the present invention includes a signal monitor unit () for estimating a specific base station communicating with a communication terminal () attacking a mobile network according to the number of times an ATTACH procedure is rejected, in which the ATTACH procedure is for registering information about a communication terminal () communicating with a base station () in a communication device () located in the mobile network, and a base station control unit () for causing the specific base station to determine whether to execute the ATTACH procedure related to a communication terminal served by the specific base station according to communication terminal identification information set in a signal transmitted from the communication terminal served by the specific base station.

Monitor device, base station, monitoring method, control method, and non-transitory computer readable medium

The server of a communication system determines a communication growth level that is the level of growth of communication between one user and another user based on the cumulative count of mail send/receive events, and stores the determined growth level in the communication growth level Data Base. When the server receives a profile view request to view the profile of user A from the terminal of user B, the server determines the range of profile information to be opened for user B out of the profile of user A, based on the communication growth level of the pair of user A and user B stored in the communication growth level Data Base.

User profile opening apparatus and method

Growing community of inventors

Tokyo, Japan

Hidemi Ishikawa