Patent ID: 8336092

Claim:
A communication control system comprising one or more non-transitory, processor readable media wherein said media is encoded with data comprising: a maintaining unit which maintains a list of addresses of illegal web pages in a phishing site which masquerades as a valid website and comprises an interface for prompting a user to enter information; a receiving unit which receives, via a network, communication data for requesting access to a content; a comparison unit which compares the address of the content included in the communication data with an address of an illegal web page included in the list; an access control unit which prohibits access to the content with the address of the content matches the address of the illegal web page; a message output unit which, when the access control unit prohibits access to the content, transmits a predetermined message to the source of the access request, instead of data of the content; and a list registration unit which accepts the address of the illegal web page and registers the address in the list, wherein: the comparison unit comprises dedicated hardware employing a wired logic circuit including a plurality of comparison circuits which compares, bit by bit, the address data of the content included in the communication data, with the address data of the illegal web page included in the list, and performs bit matching on the plurality of bits simultaneously; the list registration unit further accepts a message including a link to a valid website or mirror site of the valid website as a message to be transmitted, upon reception of a request for access to the illegal web page, to the source of the access request, when said unit accepts the address of the web page; and the message output unit transmits the message accepted by the list registration unit instead of data of the illegal web page, upon reception of a request for access to the illegal web page.