Zero Day Vulnerability: What it is, and How it works

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Private zero-day vulnerabilities are only known to their discoverer and whoever it’s been shared with. They tend to be owned by elite cyber-espionage groups, usually state-sponsored.

What is a Zero-Day Vulnerability?

A zero-day vulnerability is a software flaw that can be potentially abused in different ways, and is unknown to the targeted software vendor. The term ‘Zero-day Attack’ refers to a vulnerability that is both exploited in the wild and unknown to the target software vendor, and therefore the targeted vendor has “zero days” to fix it.

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