Zero Day Attack

Originally, among there were '14-day' groups and then '7-day' groups who would rush to release the latest cracked warez within 14 or 7 days of the products appearing in store. 0-day goes even further and is considered elite, because it involves the crackers having contacts in the development, production, distribution or retail sectors who have access to pre-release software.

0-day is also used to describe exploits for bugs that have not yet been published and therefore do not have a fix yet. 0-day means the Bad Guys are a step ahead of the Good Guys.

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Zero Day Attack