"Computer Security" By Time Life Books

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message and displays numbers that change every few minutes. These
numbers make the password one needs for the next few minutes in order to access
the computer. This password method is somewhat new. It is also better, for the
previous password method is not totally fool proof. This is because the
passwords are stored in the computer and if a computer literate person was to
access this information, they could get into a computer and enter it looking as
if they were someone else for they have obtained someone else's password. In
the future when technology increasingly gets better there are possibilities that
a computer could use you hand, inner eye, or voice print. Currently these
methods are not used but they are right around the corner. The only other way
to absolutely secure a computer would be to lock it up but with computer
networks these days that cannot be easily done unless dealing with a single
personal computer.

Computer security has become such a big issue due to ...

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