zero-day

Hello, you have come here looking for the meaning of the word zero-day. In DICTIOUS you will not only get to know all the dictionary meanings for the word zero-day, but we will also tell you about its etymology, its characteristics and you will know how to say zero-day in singular and plural. Everything you need to know about the word zero-day you have here. The definition of the word zero-day will help you to be more precise and correct when speaking or writing your texts. Knowing the definition ofzero-day, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.
See also: zero day

English

English Wikipedia has an article on:
Wikipedia

Alternative forms

Pronunciation

  • (file)

Adjective

zero-day (not comparable)

  1. (computing) Of warez: released less than a day after the official product release.
    • 2020, Oliver Markus Malloy, Bad Choices Make Good Stories:
      Back then, having "zero day warez" (brand new cracked games that are not even one day old yet) on your BBS first was a big status symbol.
  2. (computing) (of a vulnerability) newly discovered, and therefore still not fixed and possibly exploited by hackers or other criminals
  3. (computing) (of an exploit or its threat or an attack) benefiting from a newly found and yet unpatched or unmitigated flaw in software or hardware; using a zero-day vulnerability
    • 2003, John Viega, Matt Messier, Secure Programming Cookbook for C and C++:
      If your software is popular and has a high demand, you will want to defend against the "zero-day" cracker.
    • 2014, Michael Gregg, CASP CompTIA Advanced Security Practitioner Study Guide: Exam CAS-002:
      Before discussing ways to counter zero-day attacks, let's begin with the definition of what a zero-day attack is. A zero-day attack is one that the vendor does not yet know about or hasn't been fixed.
    • 2005, Valdes et al, Recent Advances in Intrusion Detection
      Automatically creating reliable signatures of zero-day exploits is the focus of intense research efforts.
  4. Used other than figuratively or idiomatically: see zero,‎ day.
    Average residues of 1.44 and 2.18 mg/kg chlortetracycline were seen in liver and kidney, respectively, at zero-day withdrawal.

Noun

zero-day (plural zero-days)

  1. (computing, idiomatic) vulnerability that has been discovered recently, and is yet unpatched or unmitigated; zero-day vulnerability
    New Internet Explorer zero-day exploited in Hong Kong attacks
    These days, however, more zero days are being used and discovered.
    All the four zero-days originally were reported to Microsoft, affecting Internet Explorer on the desktop.

References

Anagrams