Section: Threats and Vulnerabilities
Explanation/Reference:
Explanation:
A zero-day vulnerability is an unknown vulnerability in a software application. This cannot be prevented by
user security training.
A zero-day vulnerability refers to a hole in software that is unknown to the vendor. This security hole is
then exploited by hackers before the vendor becomes aware and hurries to fix it-this exploit is called a
zero-day attack. Uses of zero day attacks can include infiltrating malware, spyware or allowing unwanted
access to user information. The term "zero day" refers to the unknown nature of the hole to those outside
of the hackers, specifically, the developers. Once the vulnerability becomes known, a race begins for the
developer, who must protect users.