How to Use zero-day in a Sentence

zero-day

adjective
  • All those users must now update Chrome, after Google warned that a new zero-day exploit has been found in the wild.
    — Zak Doffman, Forbes.com, 28 Mar. 2025
  • Apple confirmed this marks its first zero-day patch of 2025.
    — Kurt Knutsson, Cyberguy Report, Fox News, 1 Feb. 2025
  • The flaw is the third zero-day exploit Google has uncovered this year targeting Chrome users.
    — Michael Kan, PCMAG, 6 June 2023
  • The scariest ransomware is the zero-day type that’s never been detected before.
    — PCMAG, 4 Mar. 2025
  • 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
  • These hackers gather to see who can be the first, running against the clock, to successfully hack a variety of targets from smartphones to printers and routers using a zero-day compromise.
    — Davey Winder, Forbes, 23 Jan. 2025
  • Microsoft suggests the culprits may have paid for details about the zero-day exploit from other hackers, citing one such sale of an ESXi exploit that went for $1.5 million.
    — Michael Kan, PCMAG, 30 July 2024
  • Progress Software disclosed a zero-day vulnerability in its MoveIt file-transfer tool in May.
    — Catherine Stupp, WSJ, 3 Aug. 2023
  • The latter played a huge hand in the collapse of the stock Thursday, a day after the company reported earnings , because once the stock crested and started going down the zero-day options act like gasoline thrown on a slow-burning fire.
    — Jim Cramer, CNBC, 2 Mar. 2025
  • Not much is known about the vulnerability itself, as is often the case with such zero-day issues this detail is held back until as many users as possible have had the opportunity to patch against the exploit.
    — Davey Winder, Forbes, 12 Dec. 2024
  • There still remains a separate issue, of course, with Qualcomm’s zero-day patch from last month not making it into Samsung’s November release—unlike Pixels.
    — Zak Doffman, Forbes, 20 Nov. 2024
  • If a zero-day virus or data-stealing Trojan gets past your defenses, an antivirus update will typically remove it before long.
    — PCMAG, 9 Feb. 2025
  • 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
  • In the past 17 months, threat actors backed by the North Korean government have targeted developers twice, one of those using a zero-day vulnerability.
    — Dan Goodin, Ars Technica, 15 July 2024
  • This follows Google’s warning early this month that two zero-day vulnerabilities are being actively exploited in the wild.
    — Zak Doffman, Forbes, 23 Mar. 2025
  • Microsoft’s monthly Patch Tuesday security update might have been and gone, but Exploit Wednesday could linger for those users who have not been quick enough to protect their systems against a bunch of zero-day vulnerabilities.
    — Davey Winder, Forbes, 12 Oct. 2024
  • 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
  • This feature expands Bitdefender’s scanning for malicious behaviors, with the aim of detecting zero-day attacks.
    — PCMAG, 14 Jan. 2025
  • In addition, current processes may have vulnerabilities that are exploited by attackers before clients and vendors know about them, which are called zero-day exploits.
    — Margarita Simonova, Forbes, 19 Sep. 2024
  • 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
  • Some cyber attacks begin with a dangerous email landing in your inbox, others might take a more direct, brute force approach, or exploit multiple zero-day vulnerabilities in Windows.
    — Davey Winder, Forbes, 16 Mar. 2025
  • Since zero-day attacks are unpredictable, organizations and vendors rely on Zero Trust defenses to mitigate risks.
    — Brian Gatke, Forbes, 28 Oct. 2024
  • Homeland tackled national and global cyberterrorism, including the hacking of elections, but the series never encountered a zero-day attack.
    — Jackie Strause, HollywoodReporter, 27 Mar. 2025
  • The worm exploited zero-day vulnerabilities to gain access to Siemens' industrial control systems.
    — Sam Sabin, Axios, 7 Jan. 2025
  • Traders taking advantage of highly speculative zero-day options represent another challenge for Nvidia shares.
    — Kevin Stankiewicz, CNBC, 14 Mar. 2025
  • These elite hackers and security researchers work relentlessly to uncover zero-day vulnerabilities in Google’s products and beyond.
    — Davey Winder, Forbes, 5 Nov. 2024
  • The campaign was surprisingly well resourced, exploiting multiple zero-day vulnerabilities the hackers appeared to have discovered in Sophos appliances.
    — Andy Greenberg, WIRED, 31 Oct. 2024
  • Out of these 97 zero-day vulnerabilities, 29 were originally discovered by Google’s security researchers.
    — Davey Winder, Forbes, 27 Mar. 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.

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