Zero-Day Exploit

Called either Day Zero or Zero-Day, it is an exploit that takes advantage of a security vulnerability on the same day that the vulnerability becomes publicly or generally known. Zero-Day exploits are usually posted by well-known hacker groups. Software companies may issue a security bulletin or advisory when the exploit becomes known, but companies may not be able to offer a patch to fix the vulnerability for some time after.

Vangie Beal
Vangie Beal is a freelance business and technology writer covering Internet technologies and online business since the late '90s.

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