Index for glossary V
A computer virus is a block of executable code that would replicate itself by attaching to other files or replacing another program.
Specific strings of binary code in most viruses (except polymorphic ones) that allow antivirus software to identify the virus. New viruses contain new signatures, which is why it is essential to keep signature files up to date.
Vishing is a type of phishing attack that targeted VoIP. It can be used by the attacker to steal the identities or money of the victim.
A flaw or weakness in a system that could be exploited by intruders to violate the security policy.
Vulnerability scanner is software that assesses security vulnerabilities in networks or host systems and produces scan results.