Match with definition

active attack

adversary

asset

attack

computer security

countermeasure

passive attack

threat

vulnerability

a.	An unauthorized attempt to gain information from a system (such as by eavesdropping) without affecting the systems operation.
b.	Anything that an owner considers valuable.
c.	An action taken to prevent or minimize the damage of a potential attack.
d.	An unauthorized attempt to modify some aspect of a systems operation.
e.	A threat carried out.
f.	A real or hypothetical entity that attacks or is a threat to a system.
g.	A flaw or weakness in a systems design, implementation, operation or management that could be exploited to violate the systems security policy.
h.	The protection of the integrity, availability, and confidentiality of information system resources.
i.	A potential for violation of security.