| 摘要 |
PROBLEM TO BE SOLVED: To keep the secret on the communication of a user concerning the use of terminal equipment connected to the Internet. SOLUTION: The user receives the provision of a conversation service or the like through his/her own terminal 30. On the screen of the terminal 30, an emergency icon 50 is displayed and when the user desires to prevent communication contents from being known, this icon is clicked. The screen of the terminal 30 is instantaneously switched to the other screen and a third person can not know the communication contents. When returning to the original communication screen, the user clicks a hidden icon, which is not displayed on the screen. Since this icon is not displayed on the screen, the third person can not recover the original communication screen. |
