| 摘要 |
<p>[PROBLEMS] To provide a security system capable of prohibiting a general unauthorized input by an unauthorized person, allowing a slight input mistake by an authorized person, and suppressing an unauthorized action in advance, thereby improving security. [MEANS FOR SOLVING THE PROBLEMS] Numbers which may be inputted by an unauthorized person (such as the birthday or the telephone number of the authorized person) are set as boobie numbers. When an unauthorized person inputs one of the numbers, the system judges that an abnormal action is caused and instructs an abnormality countermeasure such as an alarming or locking. On the other hand, when the authorized person makes a slight mistake such as inputting an incorrect character while inputting his/her password, the system does not instruct an abnormality countermeasure. Thus, it is possible to prohibit a general unauthorized input by an unauthorized person and allow a slight input mistake by the authorized person.</p> |
