INFORMATION PROCESSOR HAVING LOCK FUNCTION, LOCK (UNLOCK) METHOD FOR INFORMATION PROCESSOR, AND PROGRAM THEREOF

摘要

Provided is an information processor capable of dynamically changing a security level depending on the importance of the entire data held in a terminal. A portable telephone terminal (100) has a lock function for prohibiting (permitting) the use of a certain function (some or all functions) of the terminal upon establishment of a lock-in condition (unlock condition). The portable telephone terminal (100) comprises a secret level evaluating section (16) for calculating the secret level of the entire terminal on the basis of a score set for each of held data and a lock-in condition setting section (15) for mitigating or tightening the lock-in condition (unlock condition) according to the secret level. With the configuration, for example, when important data is received, the secret level of the entire terminal is raised and the lock-in condition (unlock condition) is mitigated (tightened).