What is Zero-Day Vulnerability?

What is Zero-Day Vulnerability?

A zero-day vulnerability is a computer security vulnerability unknown to the software developer or vendor. It is called a “zero-day” because it is discovered on the same day an attacker exploits it. This means that the vulnerability had existed for “zero days”, meaning that it was not found before it was controlled. Because the exposure is unknown, the software developer or vendor had not had the…


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