ElectronicsForYou: You can make your laptop sound an alarm when it is in the danger of getting stolen or losing data, free of cost. You can even recover or destroy your confidential data if the laptop is stolen
Lalarm is some pretty cool stuff, it lost me with the flash drive part but once I saw it implemented its really smart. using the flashdrive or the power cable as a ghetto keystone lock is smart. might look more into it and its free as well
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