A University department has a file called exam marks which contains a list of
examination marks indexed by student names in alphabetical order. A student manages
to access the exam marks file. The student cannot read the file since it is encrypted.
However, they can work out the position of their own mark making use of the fact that
the students are listed in alphabetical order. The student swaps their mark with that of
the student who is always ‘top of the class’.
Write a paragraph discussing which of the security features has been breached?
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