Zero-Day

Definition

A software vulnerability that is discovered and exploited before the developer even knows it exists, giving them zero days to fix it. It's the cybersecurity equivalent of finding out your house has been robbed by reading about it in the newspaper.

Example Usage

"We've been hit by a zero-day exploit," announced the security team, beginning what would be the longest week of their careers and the shortest tenure of the CISO's.

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