| 摘要 |
PROBLEM TO BE SOLVED: To provide an unauthorized act prevention method in which when an authorized act is detected, an electronic apparatus is disabled or electronic information including confidential data is surely erased or extinguished so as to prevent such an authorized act. SOLUTION: In the unauthorized act prevention method, the electronic apparatus 1 is provided with a nonvolatile memory 12 for storing electronic information including the confidential data, and a volatile memory 11 for storing working data necessary for various operations, wherein when the electronic apparatus is in an electrically connected state, all the electronic information stored at the nonvolatile memory 12 is saved at the volatile memory 11 and the nonvolatile memory 12 is then cleared and, when the electronic apparatus shifts to electrically disconnected state without executing a predetermined command, all the electronic information stored at the volatile memory 11 is erased, so that no electronic information is left in the electronic apparatus. COPYRIGHT: (C)2009,JPO&INPIT
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