V

[V]

Vaccine

A program that injects itself into an executable program to perform a signature check and warns if there have been any changes.

Virus

A program that can infect other programs by modifying them to include a possibly evolved copy of itself.

Vulnerability

Hardware, firmware, or software flow that leaves an AIS open for potential exploitation. A weakness in automated system security procedures, administrative controls, physical layout, internal controls, and so forth, that could be exploited by a threat to gain unauthorized access to information or disrupt critical processing.

Vulnerability Analysis

Systematic examination of an AIS or product to determine the adequacy of security measures, identify security deficiencies, provide data from which to predict the effectiveness of proposed security measures, and confirm the adequacy of such measures after implementation.