| 摘要 |
A Personal Digital Assistant is a portable computer that is so small that it can be held in the hand at use. Such Personal Digital Assistants will be extensively used both for data processing and registration, and by that data will be stored in the Personal Digital Assistant. In order to handle registered data, Personal Digital Assistants normally include functionality for setup to central computer via mobile telecommunications network. The present invention relates to a protection against theft of information from Personal Digital Assistants that have integrated functionality for mobile telecommunication. The Personal Digital Assistant is so adapted that it is not possible to activate without it connecting itself to the mobile telecommunications network. If the terminal is stolen and reported to central register for protection against theft, the terminal can lock itself against access to data, change to a state where it is unusable, and delete stored information according to specification. By that, the stored information will be inaccessible, even if the whole Personal Digital Assistant falls into wrong hands.
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