Which of the following is NOT a disadvantage of Single Sign On (SSO)?

A.
Support for all major operating system environment is difficult

B.
The cost associated with SSO development can be significant

C.
SSO could be single point of failure and total compromise of an organization asset

D.
SSO improves an administrator’s ability to manage user’s account and authorization to all associated
system

Explanation:
Single sign-on (SSO) gives the administrator the ability to streamline user accounts and better control access
rights. It, therefore, improves an administrator’s ability to manage users and user configurations to all
associated systems.
Incorrect Answers:
A: A disadvantage of SSO is that insufficient software solutions accommodate all major operating system
environments. A mix of solutions must, therefore, be adapted to the enterprise’s IT architecture and strategic
direction.
B: A disadvantage of SSO is that considerable interface development and maintenance may be required, which
could be costly.
C: SSO could be single point of failure and total compromise of an organization asset. This means that that if
an attacker uncovers a credential set, the attacker would have access to every resource within the environment
that the compromised account has access to.

Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, 2013, pp. 207-209