Disclosure of the sum of all financial aid for students in Smith dorm is not sensitive because no individual student is associated with an amount. Similarly, a list of names of students receiving financial aid is not sensitive because no amounts are specified. However, the combination of these two lists reveals the amount for an individual student if only one student in Smith dorm receives aid
What computation would a database management system have to perform in order to determine that the list of names might reveal sensitive data? What records would the database management system have to maintain on what different users know in order to determine that the list of names might reveal sensitive data?
What will be an ideal response?
The
database
management
system
has
to
track
all
information
previously
disclosed
and
all
inferences
that
could
be
drawn
from
that
information.
The
possible
inferences
can
grow
exponentially.
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