VIRUS MAIL PROTECTING-MONITORING DEVICE, METHOD AND ITS PROGRAM, AND VIRUS MAIL PROTECTING-RELAYING DEVICE AND ITS PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide the latest security service without depending on an ISP or an antivirus software house, and to provide a business model eliminating the need of an administrator and obtainable at a low price. SOLUTION: A virus mail protecting-relaying device 2 receives mail transmitting/receiving requests from a user terminal 1 and makes a connection after changing the communication destinations. The protecting-monitoring device 3 executes detection and clearance of viruses attached to mails transmitted/received between the user terminal 1 and a mail server 4 by using one selected in advance among a plurality of pieces of antivirus software, by means of an antivirus engine part 33 on the basis of the transmitting/receiving requests transmitted/received via the protecting-relaying device 2 authenticated by a router authentication part 32. Then, the protecting-monitoring device 3 transmits mails addressed to the mail server 4 to the mail server 4 via a mail server interface part 34 and transfers received mails to the engine part 33. COPYRIGHT: (C)2005,JPO&NCIPI