An organization is introducing a single sign-on (SSO)
system. Under the SSO system, users will be required to
enter only one user ID and password for access to all
application systems. Under the SSO system, unauthorized access:
A. is less likely.
B. is more likely.
C. will have a greater impact.
D. will have a smaller impact.
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Answer: C
The impact will be greater since the hacker needs to know
only one password to gain access to all systems and can,
therefore, cause greater mischief than if only the password
to one of the systems is known. Less likely would be the
correct answer if the single sign-on system were to be
introduced with a stronger form of authentication, such as a
smart card/challenge response system. There is no indication
that the probability of someone attempting to gain access to
systems after introduction of single sign-on is greater than
before. The impact can only be greater, not smaller, since
the access gained is wider.
| Is This Answer Correct ? | 5 Yes | 2 No |
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