Electronic device and method for controlling accesses to data

摘要

An electronic device (100) comprises a memory unit (140) and a controller (150). The memory unit (140) is operable to store data and accessibility information that shows whether the data is accessible. The controller (150) is operable to determine whether the accessibility information is stored in the memory unit (140) when having access to the data. The controller (150) is further operable to access the data when the accessibility information is stored in the memory unit (140).