Which of the following is an example of a zero-day vulnerability?After a user downloads and starts a piece of software, it starts showing ads and collecting data.A user voluntarily downloads a piece of software hoping it will be useful, but instead it lets hackers access the user’s computer.A group of hackers finds a flaw in a new software product and takes advantage of it before the vendor or developer finds it.A user accidentally loads malware onto a computer that logs the user’s keypresses and uses them to get confidential information.
Question
Which of the following is an example of a zero-day vulnerability?After a user downloads and starts a piece of software, it starts showing ads and collecting data.A user voluntarily downloads a piece of software hoping it will be useful, but instead it lets hackers access the user’s computer.A group of hackers finds a flaw in a new software product and takes advantage of it before the vendor or developer finds it.A user accidentally loads malware onto a computer that logs the user’s keypresses and uses them to get confidential information.
Solution
The example of a zero-day vulnerability among the options given is: "A group of hackers finds a flaw in a new software product and takes advantage of it before the vendor or developer finds it."
A zero-day vulnerability refers to a hole in software that is unknown to the vendor. This security hole is then exploited by hackers before the vendor becomes aware and hurries to fix it—this exploit is called a zero-day attack. Uses of zero-day attacks can include infiltrating malware, spyware or allowing unwanted access to user information. The term “zero-day” refers to the unknown nature of the hole to those outside of the hackers, specifically, the developers. Once the vulnerability becomes known, the vendor has to work quickly to fix the issue to protect its users.
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