A poor choice of passwords and transmission over unprotected communications lines are
examples of:

A.
vulnerabilities.

B.
threats.

C.
probabilities.

D.
impacts.

Explanation:

Vulnerabilities represent characteristics of information resources that may be exploited by a threat.
Threats are circumstances or events with the potential to cause harm to information resources.
Probabilities represent the likelihood of the occurrence of a threat, while impacts represent the
outcome or result of a threat exploiting a vulnerability.