How to Use zero-day in a Sentence

zero-day

adjective
Definition of zero-daynext
  • The flaw is the third zero-day exploit Google has uncovered this year targeting Chrome users.
    — Michael Kan, PCMAG, 6 June 2023
  • The new method solves the drug-residue problem because moxidectin, the newer version of ivermectin, has a zero-day withdrawal, at least when used in cattle.
    — Maryn McKenna, WIRED, 19 July 2023
  • It has also been reported the breach may be linked to an unpatched Microsoft Exchange zero-day.
    — WIRED, 12 Aug. 2023
  • Progress Software disclosed a zero-day vulnerability in its MoveIt file-transfer tool in May.
    — Catherine Stupp, WSJ, 3 Aug. 2023
  • Unlike bug bounties, where security researchers find flaws in companies’ code and then disclose them to the firms to fix for payments, the zero-day market encourages the trade in flaws that can potentially be exploited by the purchasers.
    — WIRED, 30 Sep. 2023
  • Unit 42 said the uptick was due to the massive impact of attacks that exploited zero-day vulnerabilities, which are security flaws that developers have yet to identify.
    — Lauren Feiner, The Verge, 5 Feb. 2024
  • The discovery of the valuable zero-day exploit, designed to install Predator on iPhones running even the most up-to-date operating system, prompted Apple to push a security update to users on Thursday afternoon.
    — Joseph Menn, Washington Post, 23 Sep. 2023
  • Apple has issued a critical security update for iPhones to address a zero-day bug in iOS 16 that could allow attackers to remotely install spyware on a device without any interaction from the iPhone owner.
    — Tom Warren, The Verge, 8 Sep. 2023
  • Out of these 97 zero-day vulnerabilities, 29 were originally discovered by Google’s security researchers.
    — Davey Winder, Forbes, 27 Mar. 2024
  • Sophisticated Cyber Threats: Advanced and sophisticated cyberattacks—including ransomware, phishing and zero-day exploits—require robust defense mechanisms.
    — Mike Kijewski, Forbes, 23 Feb. 2024
  • Traditional cybersecurity approaches—including firewalls, antivirus software, and intrusion detection systems—are frequently outpaced by sophisticated threats like polymorphic malware and zero-day exploits.
    — Kunle Fadeyi, Forbes, 15 Feb. 2024

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'zero-day.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Last Updated: